Hans-Joachim Kirch

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Cologne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Transmission line-communications equipment coupling unit having sho...
- Patent number 3,950,676
- Issue date Apr 13, 1976
- Felten & Guilleaume Carlswerk Aktiengesellschaft
- Karl Friedrich Dornseifer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE