FR928997A - Improvements to ventilation systems for roofs - Google Patents

Improvements to ventilation systems for roofs

Info

Publication number
FR928997A
FR928997A FR928997DA FR928997A FR 928997 A FR928997 A FR 928997A FR 928997D A FR928997D A FR 928997DA FR 928997 A FR928997 A FR 928997A
Authority
FR
France
Prior art keywords
roofs
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)
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.)
Ruberoid Co Ltd
Original Assignee
Ruberoid Co Ltd
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 Ruberoid Co Ltd filed Critical Ruberoid Co Ltd
Application granted granted Critical
Publication of FR928997A publication Critical patent/FR928997A/en
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
FR928997D 1942-11-24 1946-06-13 Improvements to ventilation systems for roofs Expired FR928997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB928997X 1942-11-24

Publications (1)

Publication Number Publication Date
FR928997A true FR928997A (en) 1947-12-12

Family

ID=10728124

Family Applications (1)

Application Number Title Priority Date Filing Date
FR928997D Expired FR928997A (en) 1942-11-24 1946-06-13 Improvements to ventilation systems for roofs

Country Status (1)

Country Link
FR (1) FR928997A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209669A (en) * 1963-07-19 1965-10-05 Donald E Bayne Cupola

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209669A (en) * 1963-07-19 1965-10-05 Donald E Bayne Cupola

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