CA477355A - Mecanisme de levage de portes montantes - Google Patents

Mecanisme de levage de portes montantes

Info

Publication number
CA477355A
CA477355A CA477355A CA477355DA CA477355A CA 477355 A CA477355 A CA 477355A CA 477355 A CA477355 A CA 477355A CA 477355D A CA477355D A CA 477355DA CA 477355 A CA477355 A CA 477355A
Authority
CA
Canada
Prior art keywords
lift mechanism
sliding doors
doors
sliding
lift
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
CA477355A
Other languages
English (en)
Inventor
Ditchfield Frank
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.)
Youngstown Steel Door Co
Original Assignee
Youngstown Steel Door Co
Publication date
Application granted granted Critical
Publication of CA477355A publication Critical patent/CA477355A/fr
Expired legal-status Critical Current

Links

CA477355A Mecanisme de levage de portes montantes Expired CA477355A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA477355T

Publications (1)

Publication Number Publication Date
CA477355A true CA477355A (fr) 1951-09-25

Family

ID=35617000

Family Applications (1)

Application Number Title Priority Date Filing Date
CA477355A Expired CA477355A (fr) Mecanisme de levage de portes montantes

Country Status (1)

Country Link
CA (1) CA477355A (fr)

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