CA415808A - Vertical door counterbalance - Google Patents

Vertical door counterbalance

Info

Publication number
CA415808A
CA415808A CA415808A CA415808DA CA415808A CA 415808 A CA415808 A CA 415808A CA 415808 A CA415808 A CA 415808A CA 415808D A CA415808D A CA 415808DA CA 415808 A CA415808 A CA 415808A
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
CA415808A
Other languages
French (fr)
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 CA415808A publication Critical patent/CA415808A/en
Expired legal-status Critical Current

Links

CA415808A Vertical door counterbalance Expired CA415808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA415808T

Publications (1)

Publication Number Publication Date
CA415808A true CA415808A (en) 1943-10-12

Family

ID=35525022

Family Applications (1)

Application Number Title Priority Date Filing Date
CA415808A Expired CA415808A (en) Vertical door counterbalance

Country Status (1)

Country Link
CA (1) CA415808A (en)

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