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Wayne Peterson
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Camas, WA, US
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last 30 patents
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Patent Grant
Corrugated metal vent pipe and associated system and method
Patent number
9,890,877
Issue date
Feb 13, 2018
Contech Engineered Solutions LLC
Greg L. Robbins
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
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Patent Application
CORRUGATED METAL VENT PIPE AND ASSOCIATED SYSTEM AND METHOD
Publication number
20160050948
Publication date
Feb 25, 2016
Greg L. Robbins
A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES