Invention Grant
US794028A Bulb for incandescent electric lamps. 失效
防爆电动机灯泡。

  • Patent Title: Bulb for incandescent electric lamps.
  • Patent Title (中): 防爆电动机灯泡。
  • Application No.: US1905260547
    Application Date: 1905-05-15
  • Publication No.: US794028A
    Publication Date: 1905-07-04
  • Inventor: KINTZ ROBERT R
  • Applicant: INTERNAT SILVER CO
  • Assignee: Internat Silver Co
  • Current Assignee: Internat Silver Co
  • Priority: US1905260547 1905-05-15
Bulb for incandescent electric lamps.
Information query
Patent Agency Ranking
0/0