CA391390A - Contrepoids de porte verticale - Google Patents

Contrepoids de porte verticale

Info

Publication number
CA391390A
CA391390A CA391390A CA391390DA CA391390A CA 391390 A CA391390 A CA 391390A CA 391390 A CA391390 A CA 391390A CA 391390D A CA391390D A CA 391390DA CA 391390 A CA391390 A CA 391390A
Authority
CA
Canada
Prior art keywords
vertical door
door counterbalance
counterbalance
vertical
door
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
CA391390A
Other languages
English (en)
Inventor
Cady Blodgett 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.)
Overhead Door Corp
Original Assignee
Overhead Door Corp
Publication date
Application granted granted Critical
Publication of CA391390A publication Critical patent/CA391390A/fr
Expired legal-status Critical Current

Links

CA391390A Contrepoids de porte verticale Expired CA391390A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA391390T

Publications (1)

Publication Number Publication Date
CA391390A true CA391390A (fr) 1940-09-17

Family

ID=35398939

Family Applications (1)

Application Number Title Priority Date Filing Date
CA391390A Expired CA391390A (fr) Contrepoids de porte verticale

Country Status (1)

Country Link
CA (1) CA391390A (fr)

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