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John Donald Rohrer received US Patent No. 1,640,373 on August 30, 1927, filed December 2, 1926. It was assigned to US ASBESTOS Co.
- Author
- John Donald Rohrer
- Published by
- US Patent Office
- Series
- US Patent No. 1,640,373
- Date
- August 30, 1927
- Library no.
- ACL Doc 22427 · asbestosclaims.law/library/22427
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, December 1927, in its patents department (the year's issues)
Cite this document
John Donald Rohrer. “Friction Lining and Process of Making Same (US Patent 1,640,373, 1927).” August 30, 1927. US Patent No. 1,640,373. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22427. https://asbestosclaims.law/library/22427.
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