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Invention Grant
US988461A Connection-box for electric conduits. 失效
电气连接盒。

  • Patent Title: Connection-box for electric conduits.
  • Patent Title (中): 电气连接盒。
  • Application No.: US1908445946
    Application Date: 1908-07-29
  • Publication No.: US988461A
    Publication Date: 1911-04-04
  • Inventor: GRAYBILL JOHN E
  • Applicant: GRAYBILL JOHN E
  • Assignee: John E Graybill
  • Current Assignee: John E Graybill
  • Priority: US1908445946 1908-07-29
Connection-box for electric conduits.
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