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John W. Ledeboer received US Patent No. 1,944,895 on January 30, 1934, filed March 11, 1931. It was assigned to Ambler Asbestos Shingle & Shea.
The patent's description opens (from the scanned text):
This invention relates to corrugated sheathing and particularly to such sheathing in composition form comprising, for instance, cement and fibrous material such as asbestos.
- Author
- John W. Ledeboer
- Published by
- US Patent Office
- Series
- US Patent No. 1,944,895
- Date
- January 30, 1934
- Library no.
- ACL Doc 22167 · asbestosclaims.law/library/22167
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 293 KB
Where it was listed
- Asbestos, March 1934, in its patents department (the year's issues)
Cite this document
John W. Ledeboer. “Corrugated Sheathing and Process of Forming Same (US Patent 1,944,895, 1934).” January 30, 1934. US Patent No. 1,944,895. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22167. https://asbestosclaims.law/library/22167.
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