CA308448A - Lifting and lowering apparatus - Google Patents

Lifting and lowering apparatus

Info

Publication number
CA308448A
CA308448A CA308448A CA308448DA CA308448A CA 308448 A CA308448 A CA 308448A CA 308448 A CA308448 A CA 308448A CA 308448D A CA308448D A CA 308448DA CA 308448 A CA308448 A CA 308448A
Authority
CA
Canada
Prior art keywords
lifting
lowering apparatus
lowering
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
CA308448A
Other languages
French (fr)
Inventor
Harry Dainton Edgar
Chipman Miller Henry
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 CA308448A publication Critical patent/CA308448A/en
Expired legal-status Critical Current

Links

CA308448A Lifting and lowering apparatus Expired CA308448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA308448T

Publications (1)

Publication Number Publication Date
CA308448A true CA308448A (en) 1931-02-10

Family

ID=35261601

Family Applications (1)

Application Number Title Priority Date Filing Date
CA308448A Expired CA308448A (en) Lifting and lowering apparatus

Country Status (1)

Country Link
CA (1) CA308448A (en)

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