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US2770365A Vacuum flotation and liquid purification apparatus and process 失效
真空浮选和液体净化装置及工艺

  • Patent Title: Vacuum flotation and liquid purification apparatus and process
  • Patent Title (中): 真空浮选和液体净化装置及工艺
  • Application No.: US31246152
    Application Date: 1952-10-01
  • Publication No.: US2770365A
    Publication Date: 1956-11-13
  • Inventor: WELSCH OTIS D
  • Applicant: WELSCH OTIS D
  • Assignee: Otis D Welsch
  • Current Assignee: Otis D Welsch
  • Priority: US31246152 1952-10-01
  • Main IPC: B03D1/04
  • IPC: B03D1/04 ;  C02F1/24
Vacuum flotation and liquid purification apparatus and process
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