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Skiving and roller burnishing tool
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Patent number 6,560,835
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Issue date May 13, 2003
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Sierra Machinery, Inc.
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Ronald J. Porter
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Skiving and roller burnishing tool
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Patent number 6,367,137
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Issue date Apr 9, 2002
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Sierra Machinery, Inc.
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Ronald J. Porter
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Chip crusher
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Patent number 5,090,628
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Issue date Feb 25, 1992
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Sierra Machinery, Inc.
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Ronald J. Porter
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Centering stand for cylinder holder
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Patent number 5,014,580
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Issue date May 14, 1991
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Sierra Machinery, Inc.
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Ronald J. Porter
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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74230745 - SIERRA USA
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Serial number 74230745
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Registration number 1749839
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Filing date Dec 12, 1991
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SIERRA MACHINERY, INC.
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7 - Machines and machine tools