Bruno Rybka

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Nortorf, DT

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Patents Grantslast 30 patents

Information Patent Grant
Plastics foil for the manufacture of audio-visual information carriers
- Patent number 4,071,490
- Issue date Jan 31, 1978
- Hoechst Aktiengesellschaft
- Hans-Joachim Andrascheck
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for producing a grinding foil
- Patent number 3,985,521
- Issue date Oct 12, 1976
- TED Bildplatten Aktiengesellschaft
- Heinz Borchard
- B24 - GRINDING POLISHING