Heinrich Metzler

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St. Gallen, CH

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Patents Grantslast 30 patents

Information Patent Grant
Reflective concrete body, process for the manufacture and utilizati...
- Patent number 4,218,260
- Issue date Aug 19, 1980
- Institut fur Privatwirtschaft Gschwend & Stadler
- Heinrich Metzler
- B28 - WORKING CEMENT, CLAY, OR STONE