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Invention Grant
US1374436A Combined primer and humidifier for automobile-engines 失效
汽车发动机组合底漆和加湿器

  • Patent Title: Combined primer and humidifier for automobile-engines
  • Patent Title (中): 汽车发动机组合底漆和加湿器
  • Application No.: US38113920
    Application Date: 1920-05-13
  • Publication No.: US1374436A
    Publication Date: 1921-04-12
  • Inventor: FRANK CONWAY
  • Applicant: FRANK CONWAY
  • Assignee: Conway Frank
  • Current Assignee: Conway Frank
  • Priority: US38113920 1920-05-13
  • Main IPC: F02M1/00
  • IPC: F02M1/00
Combined primer and humidifier for automobile-engines
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