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Richard F. Plachy
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West Peru, ME, US
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last 30 patents
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Patent Grant
Adjustable weir for liquid distribution systems
Patent number
5,680,989
Issue date
Oct 28, 1997
Gavin; Norman F.
Richard F. Plachy
E03 - WATER SUPPLY SEWERAGE
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Patent Grant
Optimized weir construction for liquid distributors
Patent number
5,154,353
Issue date
Oct 13, 1992
Richard F. Plachy
G05 - CONTROLLING REGULATING
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Patent Grant
Weir construction for liquid distributors
Patent number
5,107,892
Issue date
Apr 28, 1992
Richard F. Plachy
E03 - WATER SUPPLY SEWERAGE