FR690169A - Improvements to processes and devices for the production of high voids - Google Patents

Improvements to processes and devices for the production of high voids

Info

Publication number
FR690169A
FR690169A FR690169DA FR690169A FR 690169 A FR690169 A FR 690169A FR 690169D A FR690169D A FR 690169DA FR 690169 A FR690169 A FR 690169A
Authority
FR
France
Prior art keywords
processes
production
devices
high voids
voids
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR690169A publication Critical patent/FR690169A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F9/00—Diffusion pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR690169D 1929-02-19 1930-02-18 Improvements to processes and devices for the production of high voids Expired FR690169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US690169XA 1929-02-19 1929-02-19

Publications (1)

Publication Number Publication Date
FR690169A true FR690169A (en) 1930-09-17

Family

ID=22086172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR690169D Expired FR690169A (en) 1929-02-19 1930-02-18 Improvements to processes and devices for the production of high voids

Country Status (1)

Country Link
FR (1) FR690169A (en)

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