Willi Hempelmann

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Herne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Method for cementing in the manufacture of double-pane insulating g...
- Patent number 3,974,011
- Issue date Aug 10, 1976
- Jarchow; Friedrich G. K.
- Friedrich G. K. Jarchow
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Method and apparatus for cementing in the manufacture of double-pan...
- Patent number 3,947,311
- Issue date Mar 30, 1976
- Jarchow; Friedrich G. K.
- Friedrich G. K. Jarchow
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS