Joachim Coja

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Gelsenkirchen-Buer, DE

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for pneumatically discharging concrete
- Patent number 5,066,203
- Issue date Nov 19, 1991
- Friedrich Wilh. Schwing GmbH
- Joachim Coja
- B28 - WORKING CEMENT, CLAY, OR STONE