CA20931A - Appareil de ventilation - Google Patents

Appareil de ventilation

Info

Publication number
CA20931A
CA20931A CA000020931A CA20931DA CA20931A CA 20931 A CA20931 A CA 20931A CA 000020931 A CA000020931 A CA 000020931A CA 20931D A CA20931D A CA 20931DA CA 20931 A CA20931 A CA 20931A
Authority
CA
Canada
Prior art keywords
ventilating apparatus
ventilating
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
CA000020931A
Other languages
English (en)
Inventor
Charles Lawrence
Thomas F. Wintour
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 CA20931A publication Critical patent/CA20931A/fr
Expired legal-status Critical Current

Links

CA000020931A Appareil de ventilation Expired CA20931A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA20931T

Publications (1)

Publication Number Publication Date
CA20931A true CA20931A (fr) 1885-01-22

Family

ID=45137474

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000020931A Expired CA20931A (fr) Appareil de ventilation

Country Status (1)

Country Link
CA (1) CA20931A (fr)

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