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Saw blade retention system
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Patent number 5,433,457
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Issue date Jul 18, 1995
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Minnesota Mining and Manufacturing Company
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David W. Wright
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Saw blade retention system
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Patent number 5,340,129
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Issue date Aug 23, 1994
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Minnesota Mining and Manufacturing Company
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David W. Wright
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Chisel retaining device
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Patent number 4,496,164
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Issue date Jan 29, 1985
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Atlas Copco Aktiebolag
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Gunnar C. Hansson
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Rotary cutting tool and tool driver
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Patent number 4,340,328
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Issue date Jul 20, 1982
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J. P. Tool, Ltd.
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Sylvester E. Proulx
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3612552
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Patent number 3,612,552
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Issue date Oct 12, 1971
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3600999
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Patent number 3,600,999
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Issue date Aug 24, 1971
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3586343
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Patent number 3,586,343
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Issue date Jun 22, 1971
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3564969
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Patent number 3,564,969
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Issue date Feb 23, 1971
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2733073
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Patent number 2,733,073
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Issue date Jan 31, 1956
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2705128
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Patent number 2,705,128
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Issue date Mar 29, 1955
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E21 - EARTH DRILLING MINING
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2036111
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Patent number 2,036,111
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Issue date Mar 31, 1936
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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1888488
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Patent number 1,888,488
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Issue date Nov 22, 1932
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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1862337
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Patent number 1,862,337
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Issue date Jun 7, 1932
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1818823
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Patent number 1,818,823
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Issue date Aug 11, 1931
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1805330
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Patent number 1,805,330
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Issue date May 12, 1931
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1768219
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Patent number 1,768,219
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Issue date Jun 24, 1930
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1758069
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Patent number 1,758,069
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Issue date May 13, 1930
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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1740796
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Patent number 1,740,796
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Issue date Dec 24, 1929
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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1691200
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Patent number 1,691,200
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Issue date Nov 13, 1928
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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1661935
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Patent number 1,661,935
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Issue date Mar 6, 1928
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1651777
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Patent number 1,651,777
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Issue date Dec 6, 1927
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1522125
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Patent number 1,522,125
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Issue date Jan 6, 1925
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1479506
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Patent number 1,479,506
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Issue date Jan 1, 1924
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS