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Hydraulic hand-held knockout punch driver
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Patent number 12,157,242
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Issue date Dec 3, 2024
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Milwaukee Electric Tool Corporation
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James O. Myrhum
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Method for making profile with micro-hole
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Patent number 12,053,814
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Issue date Aug 6, 2024
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Shandong University
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Cunsheng Zhang
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Method for manufacturing separator
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Patent number 11,247,258
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Issue date Feb 15, 2022
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Toyota Jidosha Kabushiki Kaisha
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Kenshiro Moride
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Hydraulic hand-held knockout punch driver
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Patent number 11,148,312
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Issue date Oct 19, 2021
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Milwaukee Electric Tool Corporation
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James O. Myrhum
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F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
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Hydraulic punch device
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Patent number 10,773,293
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Issue date Sep 15, 2020
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TKR Spezialwerkzeuge GmbH
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Thorsten Weyland
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Window spacer frame punch assembly
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Patent number 10,352,090
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Issue date Jul 16, 2019
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GED Integrated Solutions, Inc.
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William Briese
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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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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Support for tool press
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Patent number 8,646,370
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Issue date Feb 11, 2014
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Peddinghaus Corporation
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Jeffrey A. Mullikin
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Tool press drive
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Patent number 8,146,473
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Issue date Apr 3, 2012
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Peddinghaus Corporation
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Jeffrey A. Mullikin
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Stud punch
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Patent number 7,797,840
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Issue date Sep 21, 2010
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Milwaukee Electric Tool Corporation
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Scott D. Bublitz
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Tool for shaping a workpiece
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Patent number 6,840,078
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Issue date Jan 11, 2005
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HJ. Martin & Son, Inc.
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Thomas J. Clover
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Apparatus for punching steel studs
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Patent number 6,367,362
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Issue date Apr 9, 2002
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Ryobi North America, Inc.
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Kenneth M. Brazell
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Channel forming and punching machine
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Patent number 5,960,664
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Issue date Oct 5, 1999
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Metalsa S. de R.L.
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Ramiro Montero-Cantu
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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