Richard L. Berkson

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San Anselmo, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Vermicomposter apparatus and method
- Patent number 8,703,477
- Issue date Apr 22, 2014
- Richard L. Berkson
- C05 - FERTILISERS MANUFACTURE THEREOF

Patents Applicationslast 30 patents

Information Patent Application
Vermicomposter apparatus and method
- Publication number 20130118410
- Publication date May 16, 2013
- Richard L. Berkson
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING