Tubes having two or more main anodes

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Patents Grantslast 30 patents

Information Patent Grant
2432051
- Patent number 2,432,051
- Issue date Dec 2, 1947
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2367987
- Patent number 2,367,987
- Issue date Jan 23, 1945
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2121598
- Patent number 2,121,598
- Issue date Jun 21, 1938
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1883398
- Patent number 1,883,398
- Issue date Oct 18, 1932
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1811521
- Patent number 1,811,521
- Issue date Jun 23, 1931
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1769092
- Patent number 1,769,092
- Issue date Jul 1, 1930
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1757605
- Patent number 1,757,605
- Issue date May 6, 1930
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1756868
- Patent number 1,756,868
- Issue date Apr 29, 1930
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1223428
- Patent number 1,223,428
- Issue date Apr 24, 1917
- H01 - BASIC ELECTRIC ELEMENTS