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Invention Grant
US1049075A Safety appliance for air-craft. 失效
空中作业安全装置。

  • Patent Title: Safety appliance for air-craft.
  • Patent Title (中): 空中作业安全装置。
  • Application No.: US1911659699
    Application Date: 1911-11-11
  • Publication No.: US1049075A
    Publication Date: 1912-12-31
  • Inventor: GAUL OSCAR
  • Applicant: GAUL OSCAR
  • Assignee: Oscar Gaul
  • Current Assignee: Oscar Gaul
  • Priority: US1911659699 1911-11-11
Safety appliance for air-craft.
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