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DE557352C Expired / Lapsed DE ⏱️ 0.0 years remaining

Process for cleaning objects made of iron and iron alloys

Assignee: JAMES H GRAVELL
•
Filing: 1929-12-17
•
Granted: 1932-08-22
•
Expires: 1949-12-17
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Abstract

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Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-10-28 11:15
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/02

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