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Faye L. Knodle
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Newton, IA, US
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last 30 patents
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Patent Grant
Tamperproof plug valve
Patent number
4,014,512
Issue date
Mar 29, 1977
A. Y. McDonald Mfg. Co.
Douglas L. Cheever
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...