CA398931A - No-draft ventilator screen - Google Patents

No-draft ventilator screen

Info

Publication number
CA398931A
CA398931A CA398931A CA398931DA CA398931A CA 398931 A CA398931 A CA 398931A CA 398931 A CA398931 A CA 398931A CA 398931D A CA398931D A CA 398931DA CA 398931 A CA398931 A CA 398931A
Authority
CA
Canada
Prior art keywords
ventilator screen
draft ventilator
draft
screen
ventilator
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
CA398931A
Other languages
French (fr)
Inventor
Allen Gerald
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 CA398931A publication Critical patent/CA398931A/en
Expired legal-status Critical Current

Links

CA398931A No-draft ventilator screen Expired CA398931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA398931T

Publications (1)

Publication Number Publication Date
CA398931A true CA398931A (en) 1941-09-02

Family

ID=35409405

Family Applications (1)

Application Number Title Priority Date Filing Date
CA398931A Expired CA398931A (en) No-draft ventilator screen

Country Status (1)

Country Link
CA (1) CA398931A (en)

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