John M. Marovich

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Troy, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Frameless shelter for sunlit enclosures such as greenhouses, solari...
- Patent number 4,068,421
- Issue date Jan 17, 1978
- John M. Marovich
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS