CA554784A - Automatically controlled ventilation device - Google Patents

Automatically controlled ventilation device

Info

Publication number
CA554784A
CA554784A CA554784A CA554784DA CA554784A CA 554784 A CA554784 A CA 554784A CA 554784 A CA554784 A CA 554784A CA 554784D A CA554784D A CA 554784DA CA 554784 A CA554784 A CA 554784A
Authority
CA
Canada
Prior art keywords
automatically controlled
ventilation device
controlled ventilation
automatically
ventilation
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
CA554784A
Other languages
French (fr)
Inventor
P. Hekelaar Johannes
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.)
EUGENE J M VAN DE POL
Original Assignee
EUGENE J M VAN DE POL
Publication date
Application granted granted Critical
Publication of CA554784A publication Critical patent/CA554784A/en
Expired legal-status Critical Current

Links

CA554784A Automatically controlled ventilation device Expired CA554784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA554784T

Publications (1)

Publication Number Publication Date
CA554784A true CA554784A (en) 1958-03-18

Family

ID=35716194

Family Applications (1)

Application Number Title Priority Date Filing Date
CA554784A Expired CA554784A (en) Automatically controlled ventilation device

Country Status (1)

Country Link
CA (1) CA554784A (en)

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