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Thomas M. Richmond received US Patent No. 2,089,426 on August 10, 1937, filed May 9, 1935. It was assigned to Modern Engineers Inc.
The patent's description opens (from the scanned text):
My invention relates to surface coated abrasive material, comprising an improved adhesive composition for holding the abradant particles in position on backing sheets or the like, and comprising also an improved combination of such adhesive with the abradant and the backing sheets making up a completed abrasive sheet ready for use.
- Author
- Thomas M. Richmond
- Published by
- US Patent Office
- Series
- US Patent No. 2,089,426
- Date
- August 10, 1937
- Library no.
- ACL Doc 23723 · asbestosclaims.law/library/23723
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 2 pages · 206 KB
Where it was listed
- Asbestos, October 1937, in its patents department (the year's issues)
Cite this document
Thomas M. Richmond. “Surface Coated Abrasive Material (US Patent 2,089,426, 1937).” August 10, 1937. US Patent No. 2,089,426. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23723. https://asbestosclaims.law/library/23723.
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