John Renfrew

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Dundas, CA

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Patents Grantslast 30 patents

Information Patent Grant
Mushroom harvester
- Patent number 9,974,235
- Issue date May 22, 2018
- John Van De Vegte
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Graze harvesting of mushrooms
- Patent number 9,730,394
- Issue date Aug 15, 2017
- Vineland Research and Innovations Centre Inc.
- John Van De Vegte
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
Mushroom Harvester
- Publication number 20170265392
- Publication date Sep 21, 2017
- Vineland Research and Innovations Centre Inc.
- John VAN DE VEGTE
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
Graze Harvesting of Mushrooms
- Publication number 20170042095
- Publication date Feb 16, 2017
- Vineland Research and Innovations Centre Inc.
- John Van De Vegte
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS