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Willis W. Sunderland
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Worthington, OH, US
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last 30 patents
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Patent Grant
Embossing method
Patent number
3,943,741
Issue date
Mar 16, 1976
The United States of America as represented by the Secretary of the Army
Willis W. Sunderland
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...