Process for rust-proofing and passivating iron articles
United States Patent 2800422
Inventors:
Achille, Piccinelli
Publication Date:
07/23/1957
Assignee:
Achille, Piccinelli
International Classes:
C23C22/83; C23C22/82
US Patent References:
| 2552874 | Method of phosphatizing ferriferous surfaces | | | |