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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Mueller; Gerhard
Address:
Hanau am Main, DE
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
4637838 Process for phosphating metals January 20, 1987
The quality of coatings in a low zinc phosphating process is improved by including an activator of formate, nitrilotriacetate, trichloroacetate or ethylenediamenetetraacetate to produce more uniform coatings particularly desirable in advance of electrocoating.










 
 
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