McDonald Steel Corp.

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McDonald, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for hot roll forming inside U-shaped channel s...
- Patent number 5,272,899
- Issue date Dec 28, 1993
- McDonald Steel Corp.
- Joseph Mediate
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...