CA663723A - Apparatus for opening or closing doors and the like - Google Patents

Apparatus for opening or closing doors and the like

Info

Publication number
CA663723A
CA663723A CA663723A CA663723DA CA663723A CA 663723 A CA663723 A CA 663723A CA 663723 A CA663723 A CA 663723A CA 663723D A CA663723D A CA 663723DA CA 663723 A CA663723 A CA 663723A
Authority
CA
Canada
Prior art keywords
opening
closing doors
doors
closing
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
CA663723A
Inventor
A. Emery Alan
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 CA663723A publication Critical patent/CA663723A/en
Expired legal-status Critical Current

Links

CA663723A Apparatus for opening or closing doors and the like Expired CA663723A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA663723T

Publications (1)

Publication Number Publication Date
CA663723A true CA663723A (en) 1963-05-28

Family

ID=35957841

Family Applications (1)

Application Number Title Priority Date Filing Date
CA663723A Expired CA663723A (en) Apparatus for opening or closing doors and the like

Country Status (1)

Country Link
CA (1) CA663723A (en)

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