Erich E. Hensel

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Wassenaar, NL

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Patents Grantslast 30 patents

Information Patent Grant
Venetian blind and tape roll support for a venetian blind
- Patent number 4,237,957
- Issue date Dec 9, 1980
- Hunter Douglas International N.V.
- Erich E. Hensel
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
External venetian blind
- Patent number 4,236,566
- Issue date Dec 2, 1980
- Hunter Douglas International N.V.
- Erich E. Hensel
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Adjustable ceiling suspension
- Patent number 3,995,823
- Issue date Dec 7, 1976
- Hunter Douglas International N.V.
- Erich Emil Hensel
- E04 - BUILDING