CA403401A - Systeme de signalisation a frequences ultra-hautes - Google Patents

Systeme de signalisation a frequences ultra-hautes

Info

Publication number
CA403401A
CA403401A CA403401A CA403401DA CA403401A CA 403401 A CA403401 A CA 403401A CA 403401 A CA403401 A CA 403401A CA 403401D A CA403401D A CA 403401DA CA 403401 A CA403401 A CA 403401A
Authority
CA
Canada
Prior art keywords
ultra
high frequency
signalling system
frequency signalling
signalling
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
CA403401A
Other languages
English (en)
Inventor
Clark 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 CA403401A publication Critical patent/CA403401A/fr
Expired legal-status Critical Current

Links

CA403401A Systeme de signalisation a frequences ultra-hautes Expired CA403401A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA403401T

Publications (1)

Publication Number Publication Date
CA403401A true CA403401A (fr) 1942-03-10

Family

ID=35413849

Family Applications (1)

Application Number Title Priority Date Filing Date
CA403401A Expired CA403401A (fr) Systeme de signalisation a frequences ultra-hautes

Country Status (1)

Country Link
CA (1) CA403401A (fr)

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