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Underwater pile driving tool
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Patent number 6,129,487
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Issue date Oct 10, 2000
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Bermingham Construction Limited
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Patrick Bermingham
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Compliant rotary powered tool
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Patent number 4,871,036
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Issue date Oct 3, 1989
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Gary A. Parrott
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Underwater tapping machine
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Patent number 4,579,484
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Issue date Apr 1, 1986
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T. D. Williamson, Inc.
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James B. Sullivan
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Underwater hydraulic tool
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Patent number 4,526,239
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Issue date Jul 2, 1985
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Japan Marine Science & Technology Center
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Hidehiko Kaneda
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Submerging ramming arrangement
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Patent number 4,479,550
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Issue date Oct 30, 1984
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Koehring GmbH
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Hans K/u/ hn
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Subsea pile driver
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Patent number 4,367,800
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Issue date Jan 11, 1983
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Hollandsche Beton Groep N.V.
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Dirk Arentsen
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Hydraulic nailing machine
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Patent number 4,347,963
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Issue date Sep 7, 1982
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Lars J. T. Billing
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Water weighted corer
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Patent number 3,970,156
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Issue date Jul 20, 1976
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The United States of America as represented by the Secretary of the Navy
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Shale Jack Niskin
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E21 - EARTH DRILLING MINING
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3912022
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Patent number 3,912,022
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Issue date Oct 14, 1975
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3881557
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Patent number 3,881,557
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Issue date May 6, 1975
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3858666
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Patent number 3,858,666
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Issue date Jan 7, 1975
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E21 - EARTH DRILLING MINING
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3828866
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Patent number 3,828,866
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Issue date Aug 13, 1974
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3802519
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Patent number 3,802,519
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Issue date Apr 9, 1974
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3786875
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Patent number 3,786,875
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Issue date Jan 22, 1974
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3695367
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Patent number 3,695,367
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Issue date Oct 3, 1972
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3596525
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Patent number 3,596,525
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Issue date Aug 3, 1971
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3547207
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Patent number 3,547,207
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Issue date Dec 15, 1970
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3533478
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Patent number 3,533,478
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Issue date Oct 13, 1970
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E21 - EARTH DRILLING MINING
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3516503
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Patent number 3,516,503
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Issue date Jun 23, 1970
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E21 - EARTH DRILLING MINING
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3502159
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Patent number 3,502,159
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Issue date Mar 24, 1970
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3477523
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Patent number 3,477,523
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Issue date Nov 11, 1969
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3468385
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Patent number 3,468,385
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Issue date Sep 23, 1969
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E21 - EARTH DRILLING MINING