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Invention Grant
US1037200A Holding-sleeve for conduits. 失效
控制套管。

  • Patent Title: Holding-sleeve for conduits.
  • Patent Title (中): 控制套管。
  • Application No.: US1911609146
    Application Date: 1911-02-17
  • Publication No.: US1037200A
    Publication Date: 1912-09-03
  • Inventor: BRINCKERHOFF FRANK M
  • Applicant: ELLCON COMPANY
  • Assignee: Ellcon Company
  • Current Assignee: Ellcon Company
  • Priority: US1911609146 1911-02-17
Holding-sleeve for conduits.
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