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Invention Grant
US948853A Pneumatic padlock. 失效
PNEUMATIC PADLOCK。

  • Patent Title: Pneumatic padlock.
  • Patent Title (中): PNEUMATIC PADLOCK。
  • Application No.: US1908434716
    Application Date: 1908-05-25
  • Publication No.: US948853A
    Publication Date: 1910-02-08
  • Inventor: GILROY FRANK J
  • Applicant: GILROY FRANK J
  • Assignee: Frank J Gilroy
  • Current Assignee: Frank J Gilroy
  • Priority: US1908434716 1908-05-25
Pneumatic padlock.
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