CA301091A - Dispositif de contrepoids de porte sur rouleau - Google Patents

Dispositif de contrepoids de porte sur rouleau

Info

Publication number
CA301091A
CA301091A CA301091A CA301091DA CA301091A CA 301091 A CA301091 A CA 301091A CA 301091 A CA301091 A CA 301091A CA 301091D A CA301091D A CA 301091DA CA 301091 A CA301091 A CA 301091A
Authority
CA
Canada
Prior art keywords
roll supported
counterbalancing device
supported doors
doors
counterbalancing
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
CA301091A
Other languages
English (en)
Inventor
M. Evans Charles
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 CA301091A publication Critical patent/CA301091A/fr
Expired legal-status Critical Current

Links

CA301091A Dispositif de contrepoids de porte sur rouleau Expired CA301091A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA301091T

Publications (1)

Publication Number Publication Date
CA301091A true CA301091A (fr) 1930-06-17

Family

ID=35254237

Family Applications (1)

Application Number Title Priority Date Filing Date
CA301091A Expired CA301091A (fr) Dispositif de contrepoids de porte sur rouleau

Country Status (1)

Country Link
CA (1) CA301091A (fr)

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