Elvin N. Sheppard

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Barton-under-Needwood, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing insulating corrugated structural members
- Patent number 4,279,679
- Issue date Jul 21, 1981
- Pierdeed Limited
- Elvin N. Sheppard
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS