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Johann Henkenjohann
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4837 Verl 1, DE
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last 30 patents
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Patent Grant
Locking device for a slatted roll-up gate or door
Patent number
5,573,050
Issue date
Nov 12, 1996
Johann Henkenjohann
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Grant
Locking mechanism for a roll-up closure
Patent number
5,474,117
Issue date
Dec 12, 1995
Johann Henkenjohann
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Grant
Roller blind for windows, doors or the like
Patent number
5,123,473
Issue date
Jun 23, 1992
Johann Henkenjohann
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information
Patent Grant
Roller blind
Patent number
4,365,660
Issue date
Dec 28, 1982
Henkenjohann; Johann
Johann-Georg Henkenjohann
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS