Richard D. Arnold

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Grand Haven, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Continuous force spring elevatable work platform
- Patent number 9,693,624
- Issue date Jul 4, 2017
- QUEST ENG LLC
- Terry Mitchell
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

Information Patent Application
CONTINUOUS FORCE SPRING ELEVATABLE WORK PLATFORM
- Publication number 20160353876
- Publication date Dec 8, 2016
- QUEST ENG LLC
- Terry Mitchell
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...