CA316959A - Ventilateur de voute - Google Patents

Ventilateur de voute

Info

Publication number
CA316959A
CA316959A CA316959A CA316959DA CA316959A CA 316959 A CA316959 A CA 316959A CA 316959 A CA316959 A CA 316959A CA 316959D A CA316959D A CA 316959DA CA 316959 A CA316959 A CA 316959A
Authority
CA
Canada
Prior art keywords
vault
ventilator
vault 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
CA316959A
Other languages
English (en)
Inventor
R. West Ross
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 CA316959A publication Critical patent/CA316959A/fr
Expired legal-status Critical Current

Links

CA316959A Ventilateur de voute Expired CA316959A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA316959T

Publications (1)

Publication Number Publication Date
CA316959A true CA316959A (fr) 1931-11-10

Family

ID=35277514

Family Applications (1)

Application Number Title Priority Date Filing Date
CA316959A Expired CA316959A (fr) Ventilateur de voute

Country Status (1)

Country Link
CA (1) CA316959A (fr)

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