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John A. Scharwath received US Patent No. 1,567,817 on December 29, 1925, filed February 8, 1924.
The patent's description opens (from the scanned text):
This invention relates to roofing and shinles and particularly to the type of shingle own as the asbestos and asphalt or asphalt shingles. v One of the objects of .the invention is to provide a shingle so constructed and arranged that when secured in position it will not curl up at its exposed edges.
- Author
- John A. Scharwath
- Published by
- US Patent Office
- Series
- US Patent No. 1,567,817
- Date
- December 29, 1925
- Library no.
- ACL Doc 23636 · asbestosclaims.law/library/23636
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 173 KB
Where it was listed
- Asbestos, February 1926, in its patents department (the year's issues)
Cite this document
John A. Scharwath. “Shingle (US Patent 1,567,817, 1925).” December 29, 1925. US Patent No. 1,567,817. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23636. https://asbestosclaims.law/library/23636.
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