CA335733A - Evacuating and ventilating device - Google Patents

Evacuating and ventilating device

Info

Publication number
CA335733A
CA335733A CA335733A CA335733DA CA335733A CA 335733 A CA335733 A CA 335733A CA 335733 A CA335733 A CA 335733A CA 335733D A CA335733D A CA 335733DA CA 335733 A CA335733 A CA 335733A
Authority
CA
Canada
Prior art keywords
evacuating
ventilating device
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
CA335733A
Other languages
French (fr)
Inventor
Polo Luigi
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 CA335733A publication Critical patent/CA335733A/en
Expired legal-status Critical Current

Links

CA335733A Evacuating and ventilating device Expired CA335733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA335733T

Publications (1)

Publication Number Publication Date
CA335733A true CA335733A (en) 1933-09-19

Family

ID=35298875

Family Applications (1)

Application Number Title Priority Date Filing Date
CA335733A Expired CA335733A (en) Evacuating and ventilating device

Country Status (1)

Country Link
CA (1) CA335733A (en)

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