CA772911A - Revolving door operating mechanism and speed controller - Google Patents

Revolving door operating mechanism and speed controller

Info

Publication number
CA772911A
CA772911A CA772911DA CA772911A CA 772911 A CA772911 A CA 772911A CA 772911D A CA772911D A CA 772911DA CA 772911 A CA772911 A CA 772911A
Authority
CA
Canada
Prior art keywords
operating mechanism
speed controller
revolving door
door operating
revolving
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 CA772911A publication Critical patent/CA772911A/en
Expired legal-status Critical Current

Links

CA772911D Revolving door operating mechanism and speed controller Expired CA772911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA772911T

Publications (1)

Publication Number Publication Date
CA772911A true CA772911A (en) 1967-12-05

Family

ID=36220190

Family Applications (1)

Application Number Title Priority Date Filing Date
CA772911D Expired CA772911A (en) Revolving door operating mechanism and speed controller

Country Status (1)

Country Link
CA (1) CA772911A (en)

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