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Constructional Material (US Patent 1,744,714, 1930)

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Albert C. Fischer received US Patent No. 1,744,714 on January 21, 1930, filed April 16, 1928. It was assigned to Philip Carey Manufacturing Co.

The patent's description opens (from the scanned text):

This invention relates further to incorporating relatively long, fibers, in which case the bituminous cellular material herein described should preferably be of a very stiff and tough structure and contain considerable earthy matter to prevent adhesion of the cell walls.

Author
Albert C. Fischer
Published by
US Patent Office
Series
US Patent No. 1,744,714
Date
January 21, 1930
Library no.
ACL Doc 22150 · asbestosclaims.law/library/22150
Rights
US government work, in the public domain.

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Cite this document

Albert C. Fischer. “Constructional Material (US Patent 1,744,714, 1930).” January 21, 1930. US Patent No. 1,744,714. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22150. https://asbestosclaims.law/library/22150.

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