CA727914A - Contra-flow ventilating apparatus - Google Patents

Contra-flow ventilating apparatus

Info

Publication number
CA727914A
CA727914A CA727914A CA727914DA CA727914A CA 727914 A CA727914 A CA 727914A CA 727914 A CA727914 A CA 727914A CA 727914D A CA727914D A CA 727914DA CA 727914 A CA727914 A CA 727914A
Authority
CA
Canada
Prior art keywords
contra
ventilating apparatus
flow ventilating
flow
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
CA727914A
Inventor
M. Stirling Leo
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 CA727914A publication Critical patent/CA727914A/en
Expired legal-status Critical Current

Links

CA727914A Contra-flow ventilating apparatus Expired CA727914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA727914T

Publications (1)

Publication Number Publication Date
CA727914A true CA727914A (en) 1966-02-15

Family

ID=36066829

Family Applications (1)

Application Number Title Priority Date Filing Date
CA727914A Expired CA727914A (en) Contra-flow ventilating apparatus

Country Status (1)

Country Link
CA (1) CA727914A (en)

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