CA386151A - Watchman's service system - Google Patents

Watchman's service system

Info

Publication number
CA386151A
CA386151A CA386151A CA386151DA CA386151A CA 386151 A CA386151 A CA 386151A CA 386151 A CA386151 A CA 386151A CA 386151D A CA386151D A CA 386151DA CA 386151 A CA386151 A CA 386151A
Authority
CA
Canada
Prior art keywords
watchman
service system
service
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
CA386151A
Other languages
French (fr)
Inventor
E. Griffins Morris
H. Saunders Norman
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.)
Associated Telephone and Telegraph Co
Original Assignee
Associated Telephone and Telegraph Co
Publication date
Application granted granted Critical
Publication of CA386151A publication Critical patent/CA386151A/en
Expired legal-status Critical Current

Links

CA386151A Watchman's service system Expired CA386151A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA386151T

Publications (1)

Publication Number Publication Date
CA386151A true CA386151A (en) 1940-01-09

Family

ID=35391373

Family Applications (1)

Application Number Title Priority Date Filing Date
CA386151A Expired CA386151A (en) Watchman's service system

Country Status (1)

Country Link
CA (1) CA386151A (en)

Similar Documents

Publication Publication Date Title
CA386151A (en) Watchman's service system
CA402342A (en) Motor regulating system
CA386093A (en) Signalling system
CA386248A (en) Signalling system
CA386766A (en) Signalling system
CA387948A (en) Signalling system
CA390554A (en) Signalling system
CA392602A (en) Crank-case ventilating system
CA387889A (en) Braking system
CA387041A (en) Humidification system
CA389772A (en) Navigational system
AU113820B2 (en) Airconditioning system
CA392159A (en) Signal system
CA390592A (en) Selecting system
CA388936A (en) Ventilating system
CA388937A (en) Ventilating system
CA390488A (en) Ventilating system
CA390489A (en) Ventilating system
CA392379A (en) Railway signalling system
CA393204A (en) Railway signalling system
CA393179A (en) Well points and system
CA391444A (en) Cooling system
CA395198A (en) Centralized information service
CA386025A (en) Elevator system
CA388058A (en) Elevator system