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William I. Lucius received US Patent No. 2,221,001 on November 12, 1940, filed October 27, 1936.
- Author
- William I. Lucius
- Published by
- US Patent Office
- Series
- US Patent No. 2,221,001
- Date
- November 12, 1940
- Library no.
- ACL Doc 23806 · asbestosclaims.law/library/23806
- Rights
- US government work, in the public domain.
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Where it was listed
- Asbestos, January 1941, in its patents department (the year's issues)
Cite this document
William I. Lucius. “Ventilating Ceiling (US Patent 2,221,001, 1940).” November 12, 1940. US Patent No. 2,221,001. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23806. https://asbestosclaims.law/library/23806.
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