Invention Grant
- Patent Title: Return end and method of making same
- Patent Title (中): 回报结束和制作方法
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Application No.: US49727321Application Date: 1921-08-31
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Publication No.: US1425222APublication Date: 1922-08-08
- Inventor: ABSALOM THOM ROBERT
- Applicant: ABSALOM THOM ROBERT
- Assignee: Thom Robert Absalom
- Current Assignee: Thom Robert Absalom
- Priority: US49727321 1921-08-31
- Main IPC: B21C37/28
- IPC: B21C37/28
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