Darrell P. Ophaug

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Marion, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Self-sealing snap-in receptacle, especially for circuit breaker cov...
- Patent number 5,005,880
- Issue date Apr 9, 1991
- Square D Company
- Peter D. Raine
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES