Ronald J. Walchek

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South Sioux City, NB, US

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Patents Grantslast 30 patents

Information Patent Grant
Means for engaging, lifting and transporting concrete pipe molds
- Patent number 4,023,771
- Issue date May 17, 1977
- Concrete Pipe Machinery Company
- Ronald J. Walchek
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Cap rest assembly for packerhead/vibration system concrete pipe mac...
- Patent number 3,945,787
- Issue date Mar 23, 1976
- Concrete Pipe Machinery Company
- Ronald J. Walchek
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Means for engaging, lifting and transporting concrete pipe molds
- Patent number 3,938,685
- Issue date Feb 17, 1976
- Concrete Pipe Machinery Company
- Ronald J. Walchek
- B28 - WORKING CEMENT, CLAY, OR STONE