Invention Grant
- Patent Title: Duplex metal article
- Patent Title (中): 双相金属制品
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Application No.: US69444633Application Date: 1933-10-20
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Publication No.: US1997166APublication Date: 1935-04-09
- Inventor: BROWN ROBERT H
- Applicant: ALUMINUM CO OF AMERICA
- Assignee: Aluminum Co Of America
- Current Assignee: Aluminum Co Of America
- Priority: US69444633 1933-10-20
- Main IPC: B32B15/01
- IPC: B32B15/01
Information query
