Richard A. Heck

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West Bloomfield, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Adjustable shade construction
- Patent number 4,202,395
- Issue date May 13, 1980
- Sundberg-Ferar, Inc.
- Richard A. Heck
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS