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Ivan Emile Lanhoffer and Oscar Edmond Lanhoffer received US Patent No. 1,514,666 on November 11, 1924, filed December 4, 1922.
- Author
- Ivan Emile Lanhoffer; Oscar Edmond Lanhoffer
- Published by
- US Patent Office
- Series
- US Patent No. 1,514,666
- Date
- November 11, 1924
- Library no.
- ACL Doc 22012 · asbestosclaims.law/library/22012
- Rights
- US government work, in the public domain.
Read or download
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Where it was listed
- Asbestos, January 1925, in its patents department (the year's issues)
Cite this document
Ivan Emile Lanhoffer, Oscar Edmond Lanhoffer. “Cement and Asbestos Sheets and Panels, Process of Manufacture (US Patent 1,514,666, 1924).” November 11, 1924. US Patent No. 1,514,666. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22012. https://asbestosclaims.law/library/22012.
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