Robert J. Siebelink

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Wyoming, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Lift assist device
- Patent number 8,678,351
- Issue date Mar 25, 2014
- Robert J. Siebelink
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
LIFT ASSIST DEVICE
- Publication number 20120280191
- Publication date Nov 8, 2012
- Robert J. Siebelink
- B66 - HOISTING LIFTING HAULING