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Invention Grant
US776892A Door-brace. 失效
门牌。

  • Patent Title: Door-brace.
  • Patent Title (中): 门牌。
  • Application No.: US1904216364
    Application Date: 1904-07-13
  • Publication No.: US776892A
    Publication Date: 1904-12-06
  • Inventor: DAHLUND FRANK
  • Applicant: DAHLUND FRANK
  • Assignee: Frank Dahlund
  • Current Assignee: Frank Dahlund
  • Priority: US1904216364 1904-07-13
Door-brace.
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