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Invention Grant
US925433A Brake-controlled car-door securer. 失效
制动控制车门保护。

  • Patent Title: Brake-controlled car-door securer.
  • Patent Title (中): 制动控制车门保护。
  • Application No.: US1909470752
    Application Date: 1909-01-05
  • Publication No.: US925433A
    Publication Date: 1909-06-15
  • Inventor: GILROY FRANK J
  • Applicant: GILROY FRANK J
  • Assignee: Frank J Gilroy
  • Current Assignee: Frank J Gilroy
  • Priority: US1909470752 1909-01-05
Brake-controlled car-door securer.
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