CA219133A - Systeme de signaux secrets - Google Patents

Systeme de signaux secrets

Info

Publication number
CA219133A
CA219133A CA219133A CA219133DA CA219133A CA 219133 A CA219133 A CA 219133A CA 219133 A CA219133 A CA 219133A CA 219133D A CA219133D A CA 219133DA CA 219133 A CA219133 A CA 219133A
Authority
CA
Canada
Prior art keywords
signalling system
secret signalling
secret
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
CA219133A
Other languages
English (en)
Inventor
W. Nichols Harold
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 CA219133A publication Critical patent/CA219133A/fr
Expired legal-status Critical Current

Links

CA219133A Systeme de signaux secrets Expired CA219133A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA219133T

Publications (1)

Publication Number Publication Date
CA219133A true CA219133A (fr) 1922-05-30

Family

ID=35113577

Family Applications (1)

Application Number Title Priority Date Filing Date
CA219133A Expired CA219133A (fr) Systeme de signaux secrets

Country Status (1)

Country Link
CA (1) CA219133A (fr)

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