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Donald V. Brown received US Patent No. 2,905,562 on September 22, 1959, filed July 29, 1957.
The patent's description opens (from the scanned text):
This invention is concerned with a process for rendering masonry water-repellent.
- Author
- Donald V. Brown
- Published by
- US Patent Office
- Series
- US Patent No. 2,905,562
- Date
- September 22, 1959
- Library no.
- ACL Doc 23444 · asbestosclaims.law/library/23444
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 394 KB
Where it was listed
- Asbestos, January 1960, in its patents department (the year's issues)
Cite this document
Donald V. Brown. “Process for rendering masonry water-repellent (US Patent 2,905,562, 1959).” September 22, 1959. US Patent No. 2,905,562. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23444. https://asbestosclaims.law/library/23444.
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