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Invention Grant
US1034608A Track for door-hangers. 失效
门锁门。

  • Patent Title: Track for door-hangers.
  • Patent Title (中): 门锁门。
  • Application No.: US1911653884
    Application Date: 1911-10-10
  • Publication No.: US1034608A
    Publication Date: 1912-08-06
  • Inventor: FRANTZ PETER
  • Applicant: FRANTZ MFG CO
  • Assignee: Frantz Mfg Co
  • Current Assignee: Frantz Mfg Co
  • Priority: US1911653884 1911-10-10
Track for door-hangers.
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