Franz Mainz

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Dusseldorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Insulating double glass pane
- Patent number 4,110,950
- Issue date Sep 5, 1978
- Gerresheimer Glas Aktiengesellschaft
- Franz Mainz
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS