发明授权
- 专利标题: Machine for grading scrap-leather.
- 专利标题(中): 刮皮机的机器。
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申请号: US4121415申请日: 1915-07-22
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公开(公告)号: US1163358A公开(公告)日: 1915-12-07
- 发明人: MITCHELL JOHN E , PARKS DENNIS
- 申请人: MITCHELL JOHN E , PARKS DENNIS
- 专利权人: John E Mitchell,Dennis Parks
- 当前专利权人: John E Mitchell,Dennis Parks
- 优先权: US4121415 1915-07-22