FR538202A - Pocket ventilators upgrades - Google Patents

Pocket ventilators upgrades

Info

Publication number
FR538202A
FR538202A FR538202DA FR538202A FR 538202 A FR538202 A FR 538202A FR 538202D A FR538202D A FR 538202DA FR 538202 A FR538202 A FR 538202A
Authority
FR
France
Prior art keywords
ventilators
upgrades
pocket
ventilators upgrades
pocket ventilators
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)
Inventor
Emilio Cavioni
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 filed Critical
Application granted granted Critical
Publication of FR538202A publication Critical patent/FR538202A/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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/084—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans
    • F04D25/086—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans hand operated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR538202D 1921-07-12 1921-07-12 Pocket ventilators upgrades Expired FR538202A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR538202T 1921-07-12

Publications (1)

Publication Number Publication Date
FR538202A true FR538202A (en) 1922-06-07

Family

ID=8928038

Family Applications (1)

Application Number Title Priority Date Filing Date
FR538202D Expired FR538202A (en) 1921-07-12 1921-07-12 Pocket ventilators upgrades

Country Status (1)

Country Link
FR (1) FR538202A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611820A1 (en) * 1987-02-25 1988-09-09 Sodilor Sa Air blowing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611820A1 (en) * 1987-02-25 1988-09-09 Sodilor Sa Air blowing device

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