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John Pluth Jr.
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Hacienda Heights, CA, US
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last 30 patents
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Patent Grant
Plotter platen mapping system
Patent number
4,872,023
Issue date
Oct 3, 1989
Sanders Associates, Inc.
Ralph J. Lake
G01 - MEASURING TESTING
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Patent Grant
Plotter paper sizing system
Patent number
4,800,402
Issue date
Jan 24, 1989
CalComp Inc.
Ralph J. Lake
G01 - MEASURING TESTING