CA492193A - Ensembles de ventilation - Google Patents

Ensembles de ventilation

Info

Publication number
CA492193A
CA492193A CA492193A CA492193DA CA492193A CA 492193 A CA492193 A CA 492193A CA 492193 A CA492193 A CA 492193A CA 492193D A CA492193D A CA 492193DA CA 492193 A CA492193 A CA 492193A
Authority
CA
Canada
Prior art keywords
ventilating
assemblies
ventilating assemblies
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
CA492193A
Other languages
English (en)
Inventor
Waletzky Alexander
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 CA492193A publication Critical patent/CA492193A/fr
Expired legal-status Critical Current

Links

CA492193A Ensembles de ventilation Expired CA492193A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA492193T

Publications (1)

Publication Number Publication Date
CA492193A true CA492193A (fr) 1953-04-21

Family

ID=35637572

Family Applications (1)

Application Number Title Priority Date Filing Date
CA492193A Expired CA492193A (fr) Ensembles de ventilation

Country Status (1)

Country Link
CA (1) CA492193A (fr)

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