Columbiana Foundry Company

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Columbiana, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Support shoes and methods of supporting metal members such as seaml...
- Patent number 4,078,412
- Issue date Mar 14, 1978
- Columbiana Foundry Company
- Lewis A. Way
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Methods of piercing and enlarging elongate metal members such as se...
- Patent number 4,034,588
- Issue date Jul 12, 1977
- Columbiana Foundry Company
- Lewis A. Way
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Metal working apparatus and methods of piercing
- Patent number 3,962,897
- Issue date Jun 15, 1976
- Columbiana Foundry Company
- Lewis A. Way
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

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