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CA741551A - Ventilating devices - Google Patents

Ventilating devices

Info

Publication number
CA741551A
CA741551A CA741551A CA741551DA CA741551A CA 741551 A CA741551 A CA 741551A CA 741551 A CA741551 A CA 741551A CA 741551D A CA741551D A CA 741551DA CA 741551 A CA741551 A CA 741551A
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
CA741551A
Inventor
A. Viehmann George
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.)
EMEH Inc
Original Assignee
George A Viehmann
Construction Specialties Inc
Publication date
Application granted granted Critical
Publication of CA741551A publication Critical patent/CA741551A/en
Expired legal-status Critical Current

Links

CA741551A Ventilating devices Expired CA741551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA741551T

Publications (1)

Publication Number Publication Date
CA741551A true CA741551A (en) 1966-08-30

Family

ID=36170727

Family Applications (1)

Application Number Title Priority Date Filing Date
CA741551A Expired CA741551A (en) Ventilating devices

Country Status (1)

Country Link
CA (1) CA741551A (en)

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