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Apparatus and method for perforating beams
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Patent number 9,221,189
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Issue date Dec 29, 2015
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BOIS D'INGENIERIE HYBRID JOIST INC.
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Jean-Francois Lachance
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Machine for removing material
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Patent number 3,991,651
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Issue date Nov 16, 1976
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Aluminum Company of America
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Robert S. Klena
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3916571
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Patent number 3,916,571
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Issue date Nov 4, 1975
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3883994
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Patent number 3,883,994
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Issue date May 20, 1975
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B24 - GRINDING POLISHING
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3659974
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Patent number 3,659,974
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Issue date May 2, 1972
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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3559529
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Patent number 3,559,529
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Issue date Feb 2, 1971
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3464314
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Patent number 3,464,314
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Issue date Sep 2, 1969
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3371581
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Patent number 3,371,581
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Issue date Mar 5, 1968
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3293989
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Patent number 3,293,989
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Issue date Dec 27, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3260159
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Patent number 3,260,159
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Issue date Jul 12, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3260158
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Patent number 3,260,158
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Issue date Jul 12, 1966
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2973696
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Patent number 2,973,696
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Issue date Mar 7, 1961
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2969716
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Patent number 2,969,716
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Issue date Jan 31, 1961
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B44 - DECORATIVE ARTS
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2944466
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Patent number 2,944,466
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Issue date Jul 12, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2925017
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Patent number 2,925,017
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Issue date Feb 16, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2925000
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Patent number 2,925,000
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Issue date Feb 16, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2924016
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Patent number 2,924,016
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Issue date Feb 9, 1960
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2913963
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Patent number 2,913,963
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Issue date Nov 24, 1959
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2909966
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Patent number 2,909,966
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Issue date Oct 27, 1959
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2902904
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Patent number 2,902,904
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Issue date Sep 8, 1959
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G05 - CONTROLLING REGULATING