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Drill attachment
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Patent number 7,617,885
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Issue date Nov 17, 2009
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Backsaver 2005, LLC
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Shannon L. Howland
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Hydraulic wrench
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Patent number 3,930,776
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Issue date Jan 6, 1976
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Unex Corporation
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Philip J. Keller
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3817111
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Patent number 3,817,111
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Issue date Jun 18, 1974
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G01 - MEASURING TESTING
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3323383
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Patent number 3,323,383
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Issue date Jun 6, 1967
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3190371
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Patent number 3,190,371
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Issue date Jun 22, 1965
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E21 - EARTH DRILLING MINING
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3187595
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Patent number 3,187,595
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Issue date Jun 8, 1965
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B60 - VEHICLES IN GENERAL
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3176878
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Patent number 3,176,878
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Issue date Apr 6, 1965
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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3137176
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Patent number 3,137,176
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Issue date Jun 16, 1964
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H01 - BASIC ELECTRIC ELEMENTS
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3113474
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Patent number 3,113,474
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Issue date Dec 10, 1963
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3088350
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Patent number 3,088,350
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Issue date May 7, 1963
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C30 - CRYSTAL GROWTH
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3058362
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Patent number 3,058,362
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Issue date Oct 16, 1962
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G06 - COMPUTING CALCULATING COUNTING
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3013589
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Patent number 3,013,589
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Issue date Dec 19, 1961
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3001092
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Patent number 3,001,092
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Issue date Sep 19, 1961
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2994227
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Patent number 2,994,227
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Issue date Aug 1, 1961
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2990723
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Patent number 2,990,723
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Issue date Jul 4, 1961
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2970490
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Patent number 2,970,490
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Issue date Feb 7, 1961
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B66 - HOISTING LIFTING HAULING
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2907427
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Patent number 2,907,427
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Issue date Oct 6, 1959
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2889136
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Patent number 2,889,136
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Issue date Jun 2, 1959
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2796124
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Patent number 2,796,124
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Issue date Jun 18, 1957
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2787912
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Patent number 2,787,912
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Issue date Apr 9, 1957
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2744413
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Patent number 2,744,413
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Issue date May 8, 1956
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G04 - HOROLOGY
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2741927
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Patent number 2,741,927
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Issue date Apr 17, 1956
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B66 - HOISTING LIFTING HAULING
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2695525
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Patent number 2,695,525
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Issue date Nov 30, 1954
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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2663464
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Patent number 2,663,464
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Issue date Dec 22, 1953
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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2638314
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Patent number 2,638,314
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Issue date May 12, 1953
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL