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Patents Grantslast 30 patents

Information Patent Grant
2355936
- Patent number 2,355,936
- Issue date Aug 15, 1944
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
2129530
- Patent number 2,129,530
- Issue date Sep 6, 1938
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
1933065
- Patent number 1,933,065
- Issue date Oct 31, 1933
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
1814321
- Patent number 1,814,321
- Issue date Jul 14, 1931
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR