Khwa Peng Teok

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Singapore, SG

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Patents Grantslast 30 patents

Information Patent Grant
Closure device
- Patent number 5,996,831
- Issue date Dec 7, 1999
- Sphinx Elektronik GmbH
- Khwa Peng Teok
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES