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Yoshiro Harada and A. Z. Hed received US Patent No. 3,891,461 on June 24, 1975, filed October 5, 1973.
The patent's abstract:
A method for protecting the asbestos fiber matrix of a hydrogen oxygen type fuel cell from the degradative effects induced by a potassium hydroxide fuel cell electrolyte which comprise adding potassium silicate in proper proportions to the potassium hydroxide electrolyte.
- Author
- Yoshiro Harada; A. Z. Hed
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 3,891,461
- Date
- June 24, 1975
- Library no.
- ACL Doc 22028 · asbestosclaims.law/library/22028
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 346 KB
Where it was listed
- Asbestos, October 1975, in its patents department (the year's issues)
Cited on this site
Cite this document
Yoshiro Harada, A. Z. Hed. “Chemical protection of asbestos (US Patent 3,891,461, 1975).” June 24, 1975. US Patent No. 3,891,461. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 22028. https://asbestosclaims.law/library/22028.
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