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John Whittier Greenleaf received US Patent No. 2,227,931 on January 7, 1941, filed September 10, 1938. It was assigned to Rockbestos Products Corp.
- Author
- John Whittier Greenleaf
- Published by
- US Patent Office
- Series
- US Patent No. 2,227,931
- Date
- January 7, 1941
- Library no.
- ACL Doc 22941 · asbestosclaims.law/library/22941
- Rights
- US government work, in the public domain.
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Where it was listed
- Asbestos, February 1941, in its patents department (the year's issues)
Cite this document
John Whittier Greenleaf. “Magnet Wire (US Patent 2,227,931, 1941).” January 7, 1941. US Patent No. 2,227,931. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22941. https://asbestosclaims.law/library/22941.
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