Title:
COATING PROCESS FOR FERROUS METAL SURFACES
United States Patent 3533859

Inventors:
Engesser, Rudolf
Tuch, Richard
Menzer, Winfried
Publication Date:
10/13/1970
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Assignee:
HOOKER CHEMICAL CORP
Primary Class:
148/262
International Classes:
C23C22/12; C23C22/05; C23F7/10
US Patent References:
3090709Phosphate coating of metals
2322349Corrosion resistant coating for metal surfaces
3420715ADDITIVE FOR PHOSPHATE COATING SOLUTION




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