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Aaron Plummer
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Los Angeles, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Dual plate backflow and breakaway check valve
Patent number
9,353,878
Issue date
May 31, 2016
Melvin Plummer
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
DUAL PLATE BACKFLOW AND BREAKAWAY CHECK VALVE
Publication number
20150240962
Publication date
Aug 27, 2015
Melvin Plummer
E03 - WATER SUPPLY SEWERAGE