- 专利标题: Thread-controlling mechanism for sewing-machines.
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申请号: US1905261175申请日: 1905-05-19
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公开(公告)号: US912522A公开(公告)日: 1909-02-16
- 发明人: AMMERMAN WILLIAM M
- 申请人: ANNIE ELIZABETH AVERY , EDWIN J TOOF
- 专利权人: Annie Elizabeth Avery,Edwin J Toof
- 当前专利权人: Annie Elizabeth Avery,Edwin J Toof
- 优先权: US1905261175 1905-05-19