Bob Dietrich

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Gahlenz, DD

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Patents Grantslast 30 patents

Information Patent Grant
Sealing arrangement for rotary vane-type motors
- Patent number 4,809,590
- Issue date Mar 7, 1989
- Veb Kombinat Polygraph "Werner Lamberz" Leipzig
- Johannes Naumann
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES