Invention Grant
US1245359A Flue-stop. 失效
FLUE-STOP。

  • Patent Title: Flue-stop.
  • Patent Title (中): FLUE-STOP。
  • Application No.: US15975317
    Application Date: 1917-04-04
  • Publication No.: US1245359A
    Publication Date: 1917-11-06
  • Inventor: LUCAS EARL
  • Applicant: LUCAS EARL
  • Assignee: Earl Lucas
  • Current Assignee: Earl Lucas
  • Priority: US15975317 1917-04-04
Flue-stop.
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