CA220542A - High frequency signalling system - Google Patents

High frequency signalling system

Info

Publication number
CA220542A
CA220542A CA220542A CA220542DA CA220542A CA 220542 A CA220542 A CA 220542A CA 220542 A CA220542 A CA 220542A CA 220542D A CA220542D A CA 220542DA CA 220542 A CA220542 A CA 220542A
Authority
CA
Canada
Prior art keywords
high frequency
signalling system
frequency signalling
signalling
frequency
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
CA220542A
Other languages
French (fr)
Inventor
H. Symthe Edwin
B. Williams Samuel
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 WESTERN ELECTRIC Co
Original Assignee
INTERNATIONAL WESTERN ELECTRIC Co
Publication date
Application granted granted Critical
Publication of CA220542A publication Critical patent/CA220542A/en
Expired legal-status Critical Current

Links

CA220542A High frequency signalling system Expired CA220542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA220542T

Publications (1)

Publication Number Publication Date
CA220542A true CA220542A (en) 1922-07-04

Family

ID=35114986

Family Applications (1)

Application Number Title Priority Date Filing Date
CA220542A Expired CA220542A (en) High frequency signalling system

Country Status (1)

Country Link
CA (1) CA220542A (en)

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