CA499356A - Systemes telephoniques - Google Patents

Systemes telephoniques

Info

Publication number
CA499356A
CA499356A CA499356A CA499356DA CA499356A CA 499356 A CA499356 A CA 499356A CA 499356 A CA499356 A CA 499356A CA 499356D A CA499356D A CA 499356DA CA 499356 A CA499356 A CA 499356A
Authority
CA
Canada
Prior art keywords
telephone systems
telephone
systems
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
CA499356A
Other languages
English (en)
Inventor
Den Hertog Martinus
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 Standard Electric Corp
Original Assignee
International Standard Electric Corp
Publication date
Application granted granted Critical
Publication of CA499356A publication Critical patent/CA499356A/fr
Expired legal-status Critical Current

Links

CA499356A Systemes telephoniques Expired CA499356A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA499356T

Publications (1)

Publication Number Publication Date
CA499356A true CA499356A (fr) 1954-01-19

Family

ID=35644799

Family Applications (1)

Application Number Title Priority Date Filing Date
CA499356A Expired CA499356A (fr) Systemes telephoniques

Country Status (1)

Country Link
CA (1) CA499356A (fr)

Similar Documents

Publication Publication Date Title
CA501321A (fr) Systemes telephoniques
CA507617A (fr) Systemes telephoniques
CA506411A (fr) Systemes telephoniques
CA502239A (fr) Systemes telephoniques
CA502238A (fr) Systemes telephoniques
CA502236A (fr) Systemes telephoniques
CA507200A (fr) Systemes de telecommunication
CA504867A (fr) Systeme selectif d'appel
CA501908A (fr) Systeme de recepteur telephonique
CA507871A (fr) Systeme de telecommunication
CA500363A (fr) Systemes de telephone mobile
CA500705A (fr) Systemes telephoniques a radio
CA503173A (fr) Systemes de telephone automatique
CA505485A (fr) Systemes de telephones automatiques
CA500638A (fr) Systemes telephoniques automatiques
CA500362A (fr) Systemes de telephone automatique
AU203647B2 (en) Improvements in telephone systems
AU205275B2 (en) Improvements in telephone systems
AU204127B2 (en) Improvements in telephone systems
AU209351B2 (en) Improvements relating to telephone systems
CA505876A (fr) Systeme de signalisation telephonique
CA505804A (fr) Systeme de signalisation telephonique
CA499833A (fr) Systemes radiotelephoniques
CA512311A (fr) Systemes telephoniques
CA512312A (fr) Systemes telephoniques