Bruce A. Helder

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Grand Rapids, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Hot tub cover lifter
- Patent number 7,155,756
- Issue date Jan 2, 2007
- Bruce A. Helder
- E04 - BUILDING
Information Patent Grant
Cylinder mounting assembly for truck mounted scraper blade
- Patent number 6,634,122
- Issue date Oct 21, 2003
- Root Spring Scraper Co.
- David M. Vermeulen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
CYLINDER MOUNTING ASSEMBLY FOR TRUCK MOUNTED SCRAPER BLADE
- Publication number 20030188461
- Publication date Oct 9, 2003
- David M. Vermeulen
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES