Cleaning and activating compositions and use thereof in producing protective phosphate coatings on metal surfaces
United States Patent 2490062
Inventors:
Jernstedt, George W.
Publication Date:
12/06/1949
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Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CORP
Primary Class:
Other Classes:
510/420, 510/435, 510/254, 510/272
International Classes:
C23C22/80; C23C22/78
Other References:
None