Ruprecht Hoffmann

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Oberschweinbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Setting the electron gun cathode heating current of an electron bea...
- Patent number 4,317,983
- Issue date Mar 2, 1982
- Steigerwald Strahltechnik GmbH
- Wilhelm Scheffels
- H01 - BASIC ELECTRIC ELEMENTS