CA49514A - Systeme d'echange de telephone et telegraphe - Google Patents

Systeme d'echange de telephone et telegraphe

Info

Publication number
CA49514A
CA49514A CA000049514A CA49514DA CA49514A CA 49514 A CA49514 A CA 49514A CA 000049514 A CA000049514 A CA 000049514A CA 49514D A CA49514D A CA 49514DA CA 49514 A CA49514 A CA 49514A
Authority
CA
Canada
Prior art keywords
telegraphic
telephonic exchange
telephonic
exchange
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
CA000049514A
Other languages
English (en)
Inventor
Wallace Childs
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA49514A publication Critical patent/CA49514A/fr
Expired legal-status Critical Current

Links

CA000049514A Systeme d'echange de telephone et telegraphe Expired CA49514A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA49514T

Publications (1)

Publication Number Publication Date
CA49514A true CA49514A (fr) 1895-07-18

Family

ID=45166053

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000049514A Expired CA49514A (fr) Systeme d'echange de telephone et telegraphe

Country Status (1)

Country Link
CA (1) CA49514A (fr)

Similar Documents

Publication Publication Date Title
CA49514A (fr) Systeme d'echange de telephone et telegraphe
GB189511951A (en) Improved System of Telephonic Exchange.
CA47827A (fr) Systeme de telegraphie
CA53794A (fr) Systeme de signal
CA55878A (fr) Communication telegraphique
CA48389A (fr) Boite a appels de telegraphe
CA50431A (fr) Systeme de telephone
CA48667A (fr) Systeme de telephone
CA51775A (fr) Relai pour telegraphes
CA52892A (fr) Systeme d'echange de telephone automatique
CA51570A (fr) Communication telephonique
CA47909A (fr) Appareil transmetteur de telegraphie
CA49955A (fr) System de tableau d'aiguille multiple
CA48398A (fr) Appareil telegraphique multiple
CA52740A (fr) Transmetteur telegraphique
CA48563A (fr) Telegraphe imprimant
CA48932A (fr) Telegraphe imprimant
CA57454A (fr) Telegraphe imprimant
GB189421347A (en) Improvements in Systems of Telegraphic or Telephonic Exchanges.
CA50276A (fr) Signal sous-marin
CA51689A (fr) Telegraphe imprimant
CA47892A (fr) Relais telephonique
CA55250A (fr) Installation telephonique
CA50329A (fr) Clef de telegraphe
CA51564A (fr) Telegraph imprimant