FR538793A - Aérateur - Google Patents

Aérateur

Info

Publication number
FR538793A
FR538793A FR538793DA FR538793A FR 538793 A FR538793 A FR 538793A FR 538793D A FR538793D A FR 538793DA FR 538793 A FR538793 A FR 538793A
Authority
FR
France
Prior art keywords
aerator
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
English (en)
Inventor
Pierre Willard
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 FR538793A publication Critical patent/FR538793A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR538793D 1921-06-21 1921-06-21 Aérateur Expired FR538793A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR538793T 1921-06-21

Publications (1)

Publication Number Publication Date
FR538793A true FR538793A (fr) 1922-06-15

Family

ID=8928423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR538793D Expired FR538793A (fr) 1921-06-21 1921-06-21 Aérateur

Country Status (1)

Country Link
FR (1) FR538793A (fr)

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