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Ralph E. Drake received US Patent No. 1,800,609 on April 14, 1931, filed March 30, 1929.
The patent's description opens (from the scanned text):
The invention relates to sheet-fastening devices, and particularly to that type of a sheet-fastening device which has a facing or covering strip.
- Author
- Ralph E. Drake
- Published by
- US Patent Office
- Series
- US Patent No. 1,800,609
- Date
- April 14, 1931
- Library no.
- ACL Doc 23629 · asbestosclaims.law/library/23629
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 7 pages · 555 KB
Where it was listed
- Asbestos, June 1931, in its patents department (the year's issues)
- Asbestos, June 1931, in its patents department (the year's issues)
Cite this document
Ralph E. Drake. “Sheet Fastening (US Patent 1,800,609, 1931).” April 14, 1931. US Patent No. 1,800,609. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23629. https://asbestosclaims.law/library/23629.
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