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FR747431A - Improvements to ventilation systems - Google Patents

Improvements to ventilation systems

Info

Publication number
FR747431A
FR747431A FR747431DA FR747431A FR 747431 A FR747431 A FR 747431A FR 747431D A FR747431D A FR 747431DA FR 747431 A FR747431 A FR 747431A
Authority
FR
France
Prior art keywords
ventilation systems
ventilation
systems
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
John Marshall
Norman Turner
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 FR747431A publication Critical patent/FR747431A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D27/00—Heating, cooling, ventilating, or air-conditioning
    • B61D27/009—Means for ventilating only

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR747431D 1932-01-20 1932-12-12 Improvements to ventilation systems Expired FR747431A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB747431X 1932-01-20

Publications (1)

Publication Number Publication Date
FR747431A true FR747431A (en) 1933-06-17

Family

ID=10496088

Family Applications (1)

Application Number Title Priority Date Filing Date
FR747431D Expired FR747431A (en) 1932-01-20 1932-12-12 Improvements to ventilation systems

Country Status (1)

Country Link
FR (1) FR747431A (en)

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