Prevention of metal tarnish

Coating processes – Removable protective coating applied – Metal base

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106124, 106135, 106136, 106146, 106147, 106153, 1061541, B65B 3300

Patent

active

044684177

ABSTRACT:
Metals are protected against tarnishing by application of a protein-containing solution to the metal surface.

REFERENCES:
patent: 2377237 (1945-05-01), James
patent: 2584123 (1952-02-01), Gruenwald
patent: 2652345 (1953-09-01), Jones
patent: 2849334 (1958-08-01), Hart
patent: 4224219 (1980-09-01), Van Blanton et al.
"Protein Protects Metals" Science News Letter, Apr. 17, 1948, p. 253.
Chemical Abstracts: vol. 90, 1979, 125,800a.

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