CA445532A - Instrument pour lever et abaisser un fardeau - Google Patents

Instrument pour lever et abaisser un fardeau

Info

Publication number
CA445532A
CA445532A CA445532A CA445532DA CA445532A CA 445532 A CA445532 A CA 445532A CA 445532 A CA445532 A CA 445532A CA 445532D A CA445532D A CA 445532DA CA 445532 A CA445532 A CA 445532A
Authority
CA
Canada
Prior art keywords
lifting
appliance
lowering
lowering appliance
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
CA445532A
Other languages
English (en)
Inventor
A. Weaver Ira
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.)
I A WEAVER ENGINEERING Co
Original Assignee
I A WEAVER ENGINEERING Co
Publication date
Application granted granted Critical
Publication of CA445532A publication Critical patent/CA445532A/fr
Expired legal-status Critical Current

Links

CA445532A Instrument pour lever et abaisser un fardeau Expired CA445532A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA445532T

Publications (1)

Publication Number Publication Date
CA445532A true CA445532A (fr) 1947-12-09

Family

ID=35563189

Family Applications (1)

Application Number Title Priority Date Filing Date
CA445532A Expired CA445532A (fr) Instrument pour lever et abaisser un fardeau

Country Status (1)

Country Link
CA (1) CA445532A (fr)

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