Gottlieb W. Grosch

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Silver Creek, NB, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and means for creating perforated concrete casing
- Patent number 4,039,608
- Issue date Aug 2, 1977
- Gottlieb W. Grosch
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Head shaft breaking tool
- Patent number 4,020,541
- Issue date May 3, 1977
- Gottlieb W. Grosch
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Means for creating perforated concrete casing
- Patent number 3,957,409
- Issue date May 18, 1976
- Gottlieb W. Grosch
- B28 - WORKING CEMENT, CLAY, OR STONE