Osvaldo A. Oller

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Cape Girardeau, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing cement raw mix
- Patent number 4,395,290
- Issue date Jul 26, 1983
- Gulf & Western Industries, Inc.
- Osvaldo A. Oller
- B28 - WORKING CEMENT, CLAY, OR STONE