FR540717A - Ventilateurs actionnés à la main - Google Patents

Ventilateurs actionnés à la main

Info

Publication number: FR540717A
Authority: FR; France
Prior art keywords: hand; operated fans; fans; operated
Prior art date: 1921-09-07
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

Inventor

Arthur Jay Aylesworth

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.)

1921-09-07

Filing date

1921-09-07

Publication date

1922-07-17

1921-09-07 Application filed filed Critical

1922-07-17 Application granted granted Critical

1922-07-17 Publication of FR540717A publication Critical patent/FR540717A/fr

Status Expired legal-status Critical Current

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)

FR540717D 1921-09-07 1921-09-07 Ventilateurs actionnés à la main Expired FR540717A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR540717T		1921-09-07

Publications (1)

Publication Number	Publication Date
FR540717A true FR540717A (fr)	1922-07-17

Family

ID=8929660

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR540717D Expired FR540717A (fr)	1921-09-07	1921-09-07	Ventilateurs actionnés à la main

Country Status (1)

Country	Link
FR (1)	FR540717A (fr)

1921
- 1921-09-07 FR FR540717D patent/FR540717A/fr not_active Expired

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