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Invention Grant
US926508A Automatic spring-tension feed. 失效
自动弹簧喂料。

  • Patent Title: Automatic spring-tension feed.
  • Patent Title (中): 自动弹簧喂料。
  • Application No.: US1908468863
    Application Date: 1908-12-22
  • Publication No.: US926508A
    Publication Date: 1909-06-29
  • Inventor: PATERSON WILLIAM
  • Applicant: PATERSON WILLIAM
  • Assignee: William Paterson
  • Current Assignee: William Paterson
  • Priority: US1908468863 1908-12-22
Automatic spring-tension feed.
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