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Albert J. Hanley received US Patent No. 2,249,275 on July 15, 1941, filed March 31, 1937. It was assigned to Respro Inc.
- Author
- Albert J. Hanley
- Published by
- US Patent Office
- Series
- US Patent No. 2,249,275
- Date
- July 15, 1941
- Library no.
- ACL Doc 22773 · asbestosclaims.law/library/22773
- Rights
- US government work, in the public domain.
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Where it was listed
- Asbestos, August 1941, in its patents department (the year's issues)
Cite this document
Albert J. Hanley. “Insulating Material (US Patent 2,249,275, 1941).” July 15, 1941. US Patent No. 2,249,275. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22773. https://asbestosclaims.law/library/22773.
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