CA420569A - Systeme de signalisation a frequences ultra-hautes - Google Patents

Systeme de signalisation a frequences ultra-hautes

Info

Publication number
CA420569A
CA420569A CA420569A CA420569DA CA420569A CA 420569 A CA420569 A CA 420569A CA 420569 A CA420569 A CA 420569A CA 420569D A CA420569D A CA 420569DA CA 420569 A CA420569 A CA 420569A
Authority
CA
Canada
Prior art keywords
high frequency
ultra high
signalling system
frequency signalling
ultra
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
CA420569A
Other languages
English (en)
Inventor
Clark Southworth George
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA420569A publication Critical patent/CA420569A/fr
Expired legal-status Critical Current

Links

CA420569A Systeme de signalisation a frequences ultra-hautes Expired CA420569A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA420569T

Publications (1)

Publication Number Publication Date
CA420569A true CA420569A (fr) 1944-05-30

Family

ID=35531501

Family Applications (1)

Application Number Title Priority Date Filing Date
CA420569A Expired CA420569A (fr) Systeme de signalisation a frequences ultra-hautes

Country Status (1)

Country Link
CA (1) CA420569A (fr)

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