CA535711A - Automatic means for opening and closing overhead doors - Google Patents

Automatic means for opening and closing overhead doors

Info

Publication number
CA535711A
CA535711A CA535711A CA535711DA CA535711A CA 535711 A CA535711 A CA 535711A CA 535711 A CA535711 A CA 535711A CA 535711D A CA535711D A CA 535711DA CA 535711 A CA535711 A CA 535711A
Authority
CA
Canada
Prior art keywords
opening
automatic means
overhead doors
closing overhead
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
CA535711A
Other languages
French (fr)
Inventor
E. Clogg Howard
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 CA535711A publication Critical patent/CA535711A/en
Expired legal-status Critical Current

Links

CA535711A Automatic means for opening and closing overhead doors Expired CA535711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA535711T

Publications (1)

Publication Number Publication Date
CA535711A true CA535711A (en) 1957-01-15

Family

ID=35690339

Family Applications (1)

Application Number Title Priority Date Filing Date
CA535711A Expired CA535711A (en) Automatic means for opening and closing overhead doors

Country Status (1)

Country Link
CA (1) CA535711A (en)

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