CA872474A - Quarterline stop control system for power driven revolving doors - Google Patents

Quarterline stop control system for power driven revolving doors

Info

Publication number
CA872474A
CA872474A CA872474DA CA872474A CA 872474 A CA872474 A CA 872474A CA 872474D A CA872474D A CA 872474DA CA 872474 A CA872474 A CA 872474A
Authority
CA
Canada
Prior art keywords
quarterline
control system
stop control
power driven
revolving doors
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
Inventor
E. Sheckells Amuel
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.)
International Steel Co
Original Assignee
International Steel Co
Publication date
Application granted granted Critical
Publication of CA872474A publication Critical patent/CA872474A/en
Expired legal-status Critical Current

Links

CA872474D Quarterline stop control system for power driven revolving doors Expired CA872474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA872474T

Publications (1)

Publication Number Publication Date
CA872474A true CA872474A (en) 1971-06-01

Family

ID=36358458

Family Applications (1)

Application Number Title Priority Date Filing Date
CA872474D Expired CA872474A (en) Quarterline stop control system for power driven revolving doors

Country Status (1)

Country Link
CA (1) CA872474A (en)

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