CA641742A - Door-operators - Google Patents

Door-operators

Info

Publication number
CA641742A
CA641742A CA641742A CA641742DA CA641742A CA 641742 A CA641742 A CA 641742A CA 641742 A CA641742 A CA 641742A CA 641742D A CA641742D A CA 641742DA CA 641742 A CA641742 A CA 641742A
Authority
CA
Canada
Prior art keywords
operators
door
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
CA641742A
Inventor
A. Purdy Frederick
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 CA641742A publication Critical patent/CA641742A/en
Expired legal-status Critical Current

Links

CA641742A Door-operators Expired CA641742A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA641742T

Publications (1)

Publication Number Publication Date
CA641742A true CA641742A (en) 1962-05-29

Family

ID=35920262

Family Applications (1)

Application Number Title Priority Date Filing Date
CA641742A Expired CA641742A (en) Door-operators

Country Status (1)

Country Link
CA (1) CA641742A (en)

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