Sivachenko; E. W.

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Redding, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Corrugated plate having variable material thickness and method for...
- Patent number 4,317,350
- Issue date Mar 2, 1982
- Sivachenko; E. W.
- Eugene W. Sivachenko
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Corrugated vehicle underframe
- Patent number 4,275,663
- Issue date Jun 30, 1981
- Sivachenko; E. W.
- Eugene W. Sivachenko
- B61 - RAILWAYS