CA489898A - Mecanisme de levage - Google Patents

Mecanisme de levage

Info

Publication number
CA489898A
CA489898A CA489898A CA489898DA CA489898A CA 489898 A CA489898 A CA 489898A CA 489898 A CA489898 A CA 489898A CA 489898D A CA489898D A CA 489898DA CA 489898 A CA489898 A CA 489898A
Authority
CA
Canada
Prior art keywords
lift mechanism
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
CA489898A
Other languages
English (en)
Inventor
Madland Thorvald
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 CA489898A publication Critical patent/CA489898A/fr
Expired legal-status Critical Current

Links

CA489898A Mecanisme de levage Expired CA489898A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA489898T

Publications (1)

Publication Number Publication Date
CA489898A true CA489898A (fr) 1953-01-20

Family

ID=35629627

Family Applications (1)

Application Number Title Priority Date Filing Date
CA489898A Expired CA489898A (fr) Mecanisme de levage

Country Status (1)

Country Link
CA (1) CA489898A (fr)

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