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Landmark Dates
These are some of the landmark dates for application and advancements in the use of diamond-bit drilling:
3000 BC 1920's
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3000 BC+
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Egypt
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6"-20'
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quarrying
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1863
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Mt. Cenis tunnel, France (Leschot drills)
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--
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blast holes
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1865
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NW Pennsylvania oil region
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10'
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oil, experimental
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1869
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Vermont
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--
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marble
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1869
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Michigan
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130'
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iron
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1871
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Pottsville, Pa.
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750'
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coal
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1871
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Springville, Nova Scotia
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--
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coal
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1872
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Silver Islet Mine, Port Arthur, Ontario
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--
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prospecting - mining
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1872
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Pottsville, Pa.
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250-300'
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coal
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1872-3+
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Hell Gate, New York Harbor
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--
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reef removal
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1876
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Double hydraulic diamond-drill machine shown in Centennial Exposition in Philadelphia
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--
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exhibit
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1878+
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Lake Superior Iron Ranges
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--
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iron
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1909
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Upper Silesia, Germany, deep well
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7347'
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1916
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Used in U.S. oilfields on a commercial scale
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--
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oil
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1920's
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Cores in Bradford field - water flood
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--
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oil
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1920-28
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Panuco District, Tampico Basin, Mexico
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2153'
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oil
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1921
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General use of coring equipment, U.S. and abroad
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--
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oil
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1929
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Venezuela, Mene Grande field, Maracaibo Sullivan P-2 5000' rotary but was used as rotary only
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3400'
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oil
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