Wolfgang B. Kapitza

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Hillsdale, AU

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Patents Grantslast 30 patents

Information Patent Grant
Roller shutter safety device
- Patent number 4,262,176
- Issue date Apr 14, 1981
- Byrne & Davidson Doors Pty. Limited
- Wolfgang B. Kapitza
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS