CA219356A - Ventilating and air purifying apparatus - Google Patents

Ventilating and air purifying apparatus

Info

Publication number
CA219356A
CA219356A CA219356A CA219356DA CA219356A CA 219356 A CA219356 A CA 219356A CA 219356 A CA219356 A CA 219356A CA 219356D A CA219356D A CA 219356DA CA 219356 A CA219356 A CA 219356A
Authority
CA
Canada
Prior art keywords
ventilating
air purifying
purifying apparatus
air
purifying
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
CA219356A
Other languages
French (fr)
Inventor
Smethurst Herbert
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 CA219356A publication Critical patent/CA219356A/en
Expired legal-status Critical Current

Links

CA219356A Ventilating and air purifying apparatus Expired CA219356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA219356T

Publications (1)

Publication Number Publication Date
CA219356A true CA219356A (en) 1922-06-06

Family

ID=35113800

Family Applications (1)

Application Number Title Priority Date Filing Date
CA219356A Expired CA219356A (en) Ventilating and air purifying apparatus

Country Status (1)

Country Link
CA (1) CA219356A (en)

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