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Invention Grant
US742731A Folding hat. 失效
折叠帽

  • Patent Title: Folding hat.
  • Patent Title (中): 折叠帽
  • Application No.: US1903166552
    Application Date: 1903-07-22
  • Publication No.: US742731A
    Publication Date: 1903-10-27
  • Inventor: PLATO ROBERT
  • Applicant: PLATO ROBERT
  • Assignee: Robert Plato
  • Current Assignee: Robert Plato
  • Priority: US1903166552 1903-07-22
Folding hat.
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