Bruce Hiemstra

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Jenison, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Variable back adjuster for chairs
- Patent number 4,494,795
- Issue date Jan 22, 1985
- Steelcase Inc.
- Charles P. Roossien
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...