CA449739A - Ventilation control device - Google Patents

Ventilation control device

Info

Publication number
CA449739A
CA449739A CA449739A CA449739DA CA449739A CA 449739 A CA449739 A CA 449739A CA 449739 A CA449739 A CA 449739A CA 449739D A CA449739D A CA 449739DA CA 449739 A CA449739 A CA 449739A
Authority
CA
Canada
Prior art keywords
control device
ventilation control
ventilation
control
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
CA449739A
Other languages
French (fr)
Inventor
Otto Eichenberger Walter
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA449739A publication Critical patent/CA449739A/en
Expired legal-status Critical Current

Links

CA449739A Ventilation control device Expired CA449739A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA449739T

Publications (1)

Publication Number Publication Date
CA449739A true CA449739A (en) 1948-07-13

Family

ID=35567450

Family Applications (1)

Application Number Title Priority Date Filing Date
CA449739A Expired CA449739A (en) Ventilation control device

Country Status (1)

Country Link
CA (1) CA449739A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5454755A (en) * 1993-04-21 1995-10-03 Sweeny; H. Dermot Window ventilator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5454755A (en) * 1993-04-21 1995-10-03 Sweeny; H. Dermot Window ventilator

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