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Invention Grant
US3359487A Electrical conductivity probe having a conductive, spongy fluid filled wiper member for checking interior coatings of pipe 失效
导电探针具有用于检查管道内部涂层的导电的海绵状流体填充的擦拭器部件

  • Patent Title: Electrical conductivity probe having a conductive, spongy fluid filled wiper member for checking interior coatings of pipe
  • Patent Title (中): 导电探针具有用于检查管道内部涂层的导电的海绵状流体填充的擦拭器部件
  • Application No.: US35919264
    Application Date: 1964-04-13
  • Publication No.: US3359487A
    Publication Date: 1967-12-19
  • Inventor: NATHAN CHARLES C , KILNAR JULIUS J , PITTMAN ROBERT W
  • Applicant: TEXACO INC
  • Assignee: Texaco Inc
  • Current Assignee: Texaco Inc
  • Priority: US35919264 1964-04-13
  • Main IPC: E21B47/00
  • IPC: E21B47/00 ;  G01N27/20
Electrical conductivity probe having a conductive, spongy fluid filled wiper member for checking interior coatings of pipe
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