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CA417866A - Soupape d'air et dispositif de contre-pression - Google Patents

Soupape d'air et dispositif de contre-pression

Info

Publication number
CA417866A
CA417866A CA417866A CA417866DA CA417866A CA 417866 A CA417866 A CA 417866A CA 417866 A CA417866 A CA 417866A CA 417866D A CA417866D A CA 417866DA CA 417866 A CA417866 A CA 417866A
Authority
CA
Canada
Prior art keywords
back pressure
air valve
pressure device
valve
air
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
CA417866A
Other languages
English (en)
Inventor
C. Groeniger William
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.)
John B Pierce Foundation
Original Assignee
John B Pierce Foundation
Publication date
Application granted granted Critical
Publication of CA417866A publication Critical patent/CA417866A/fr
Expired legal-status Critical Current

Links

CA417866A Soupape d'air et dispositif de contre-pression Expired CA417866A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA417866T

Publications (1)

Publication Number Publication Date
CA417866A true CA417866A (fr) 1944-01-18

Family

ID=35527121

Family Applications (1)

Application Number Title Priority Date Filing Date
CA417866A Expired CA417866A (fr) Soupape d'air et dispositif de contre-pression

Country Status (1)

Country Link
CA (1) CA417866A (fr)

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