CA469979A - Ventilating devices - Google Patents

Ventilating devices

Info

Publication number
CA469979A
CA469979A CA469979A CA469979DA CA469979A CA 469979 A CA469979 A CA 469979A CA 469979 A CA469979 A CA 469979A CA 469979D A CA469979D A CA 469979DA CA 469979 A CA469979 A CA 469979A
Authority
CA
Canada
Prior art keywords
ventilating devices
ventilating
devices
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
CA469979A
Other languages
French (fr)
Inventor
J. Scallon Frank
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 CA469979A publication Critical patent/CA469979A/en
Expired legal-status Critical Current

Links

CA469979A Ventilating devices Expired CA469979A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA469979T

Publications (1)

Publication Number Publication Date
CA469979A true CA469979A (en) 1950-12-12

Family

ID=35603919

Family Applications (1)

Application Number Title Priority Date Filing Date
CA469979A Expired CA469979A (en) Ventilating devices

Country Status (1)

Country Link
CA (1) CA469979A (en)

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