CA535331A - Butterfly damper - Google Patents

Butterfly damper

Info

Publication number
CA535331A
CA535331A CA535331A CA535331DA CA535331A CA 535331 A CA535331 A CA 535331A CA 535331 A CA535331 A CA 535331A CA 535331D A CA535331D A CA 535331DA CA 535331 A CA535331 A CA 535331A
Authority
CA
Canada
Prior art keywords
butterfly damper
butterfly
damper
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
CA535331A
Other languages
French (fr)
Inventor
O. Griner Clarence
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.)
United States Register Co
Original Assignee
United States Register Co
Publication date
Application granted granted Critical
Publication of CA535331A publication Critical patent/CA535331A/en
Expired legal-status Critical Current

Links

CA535331A Butterfly damper Expired CA535331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA535331T

Publications (1)

Publication Number Publication Date
CA535331A true CA535331A (en) 1957-01-01

Family

ID=35689957

Family Applications (1)

Application Number Title Priority Date Filing Date
CA535331A Expired CA535331A (en) Butterfly damper

Country Status (1)

Country Link
CA (1) CA535331A (en)

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