Ryszard J. Puchala

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Scarborough, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for removal of surface material
- Patent number 4,854,770
- Issue date Aug 8, 1989
- Indescor Hydrodynamics Inc.
- Ryszard J. Puchala
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Method and apparatus for removal of surface material
- Patent number 4,640,644
- Issue date Feb 3, 1987
- Indescor Hydrodynamics Inc.
- Ryszard J. Puchala
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES