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Karl H. Lonnecke
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Bremen, DE
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Patents Grants
last 30 patents
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Patent Grant
Method of and apparatus for locating operational surfaces on a trac...
Patent number
4,970,773
Issue date
Nov 20, 1990
Dyckerhoff & Widmann Aktiengesellschaft
Wilhelm Buchler
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information
Patent Grant
Apparatus for forming slide surfaces on track for electromagnetical...
Patent number
4,905,359
Issue date
Mar 6, 1990
Dyckerhoff & Widmann Aktiengesellschaft
Lorenz Maier
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Method of the formation of slide surfaces on a track for electromag...
Patent number
4,856,173
Issue date
Aug 15, 1989
Dyckerhoff & Widmann Aktiengesellschaft
Lorenz Maier
B28 - WORKING CEMENT, CLAY, OR STONE