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Thomas Francis and Maurice H. Jones received US Patent No. 3,311,459 on March 28, 1967, filed December 12, 1963.
The patent's description opens:
This invention relates to a chemical heating device.
- Author
- Thomas Francis; Maurice H. Jones
- Published by
- US Patent Office
- Series
- US Patent No. 3,311,459
- Date
- March 28, 1967
- Library no.
- ACL Doc 22027 · asbestosclaims.law/library/22027
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 4 pages · 535 KB
Where it was listed
- Asbestos, May 1967, in its patents department (the year's issues)
Cite this document
Thomas Francis, Maurice H. Jones. “Chemical heating device in sheet form (US Patent 3,311,459, 1967).” March 28, 1967. US Patent No. 3,311,459. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22027. https://asbestosclaims.law/library/22027.
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