Marvin J. Priefert

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Mount Pleasant, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Chain gate structure
- Patent number 4,509,577
- Issue date Apr 9, 1985
- Priefert Mfg. Co., Inc.
- Marvin J. Priefert
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS