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Invention Grant
USB373428I5  失效

  • Patent Title:
  • Application No.: US37342873
    Application Date: 1973-06-25
  • Publication No.: USB373428I5
    Publication Date: 1975-01-28
  • Priority: US37342873 1973-06-25; US19159771 1971-10-22
  • Main IPC: B60B3/08
  • IPC: B60B3/08 ;  B62D55/14
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