Process of coloring steel or iron plate.

Invention Grant

US788167A Process of coloring steel or iron plate. 失效

Title translation: 彩钢或铁板的工艺。

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Patent Title: Process of coloring steel or iron plate.
Patent Title (中): 彩钢或铁板的工艺。
Application No.: US1904224932

Application Date: 1904-09-17
Publication No.: US788167A

Publication Date: 1905-04-25
Inventor: O'BRIEN THOMAS , LONG WILLIAM P
Applicant: AMERICAN SHEET & TIN PLATE
Assignee: American Sheet & Tin Plate
Current Assignee: American Sheet & Tin Plate
Priority: US1904224932 1904-09-17

Process of coloring steel or iron plate.

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