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Emil Pfitzer received US Patent No. 1,979,995 on November 6, 1934, filed June 27, 1933. It was assigned to General Electric Co.
- Author
- Emil Pfitzer
- Published by
- US Patent Office
- Series
- US Patent No. 1,979,995
- Date
- November 6, 1934
- Library no.
- ACL Doc 22817 · asbestosclaims.law/library/22817
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, December 1934, in its patents department (the year's issues)
Cite this document
Emil Pfitzer. “Insulation (US Patent 1,979,995, 1934).” November 6, 1934. US Patent No. 1,979,995. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22817. https://asbestosclaims.law/library/22817.
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