CA426152A - Mecanisme de levage de porte - Google Patents

Mecanisme de levage de porte

Info

Publication number
CA426152A
CA426152A CA426152A CA426152DA CA426152A CA 426152 A CA426152 A CA 426152A CA 426152 A CA426152 A CA 426152A CA 426152D A CA426152D A CA 426152DA CA 426152 A CA426152 A CA 426152A
Authority
CA
Canada
Prior art keywords
lift mechanism
door lift
door
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
CA426152A
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 CA426152A publication Critical patent/CA426152A/fr
Expired legal-status Critical Current

Links

CA426152A Mecanisme de levage de porte Expired CA426152A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA426152T

Publications (1)

Publication Number Publication Date
CA426152A true CA426152A (fr) 1945-03-13

Family

ID=35537172

Family Applications (1)

Application Number Title Priority Date Filing Date
CA426152A Expired CA426152A (fr) Mecanisme de levage de porte

Country Status (1)

Country Link
CA (1) CA426152A (fr)

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