CA573053A - Dispositif d'ouverture et de fermeture automatiques pour portes suspendues - Google Patents

Dispositif d'ouverture et de fermeture automatiques pour portes suspendues

Info

Publication number
CA573053A
CA573053A CA573053A CA573053DA CA573053A CA 573053 A CA573053 A CA 573053A CA 573053 A CA573053 A CA 573053A CA 573053D A CA573053D A CA 573053DA CA 573053 A CA573053 A CA 573053A
Authority
CA
Canada
Prior art keywords
closing means
automatic opening
overhead doors
doors
overhead
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
CA573053A
Other languages
English (en)
Inventor
N. Mcninch James
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 CA573053A publication Critical patent/CA573053A/fr
Expired legal-status Critical Current

Links

CA573053A Dispositif d'ouverture et de fermeture automatiques pour portes suspendues Expired CA573053A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA573053T

Publications (1)

Publication Number Publication Date
CA573053A true CA573053A (fr) 1959-03-31

Family

ID=35748897

Family Applications (1)

Application Number Title Priority Date Filing Date
CA573053A Expired CA573053A (fr) Dispositif d'ouverture et de fermeture automatiques pour portes suspendues

Country Status (1)

Country Link
CA (1) CA573053A (fr)

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