John K. Czechowski

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Huntington Beach, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Structural steel corrosion protection by inert gas
- Patent number 4,955,173
- Issue date Sep 11, 1990
- John K. Czechowski
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...