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Robert E. Slack and Lee M. Hedges received US Patent No. 2,486,217 on October 25, 1949, filed July 20, 1945.
The patent's description opens (from the scanned text):
The invention is'particularly concerned with the expanding or stretching of condensed mats of the type built up as a plurality of layers or strata of continuous glass filaments on a drawing drum'or the like, with the filaments of the layers inter-crossed.
- Author
- Robert E. Slack; Lee M. Hedges
- Published by
- US Patent Office
- Series
- US Patent No. 2,486,217
- Date
- October 25, 1949
- Library no.
- ACL Doc 22993 · asbestosclaims.law/library/22993
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 6 pages · 630 KB
Where it was listed
- Asbestos, February 1950, in its patents department (the year's issues)
Cite this document
Robert E. Slack, Lee M. Hedges. “Method and Apparatus for Expansion of Fibrous Mass (US Patent 2,486,217, 1949).” October 25, 1949. US Patent No. 2,486,217. US Patent Office. AsbestosClaims.Law Library, ACL Doc 22993. https://asbestosclaims.law/library/22993.
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