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-
-
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Fluid operated undercutter
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Patent number 4,153,121
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Issue date May 8, 1979
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John MacDonald & Company (Pneumatic Tools) Ltd.
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David T. Allan
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B28 - WORKING CEMENT, CLAY, OR STONE
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Internal tube cutter
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Patent number 4,142,429
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Issue date Mar 6, 1979
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Westinghouse Electric Corp.
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Robert L. Wilkins
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3477319
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Patent number 3,477,319
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Issue date Nov 11, 1969
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3443458
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Patent number 3,443,458
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Issue date May 13, 1969
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3422705
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Patent number 3,422,705
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Issue date Jan 21, 1969
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3389620
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Patent number 3,389,620
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Issue date Jun 25, 1968
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3025729
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Patent number 3,025,729
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Issue date Mar 20, 1962
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2991670
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Patent number 2,991,670
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Issue date Jul 11, 1961
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2771798
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Patent number 2,771,798
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Issue date Nov 27, 1956
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2522315
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Patent number 2,522,315
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Issue date Sep 12, 1950
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2383050
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Patent number 2,383,050
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Issue date Aug 21, 1945
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2194234
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Patent number 2,194,234
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Issue date Mar 19, 1940
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1928529
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Patent number 1,928,529
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Issue date Sep 26, 1933
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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1488222
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Patent number 1,488,222
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Issue date Mar 25, 1924
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR