CA52892A - Systeme d'echange de telephone automatique - Google Patents

Systeme d'echange de telephone automatique

Info

Publication number
CA52892A
CA52892A CA000052892A CA52892DA CA52892A CA 52892 A CA52892 A CA 52892A CA 000052892 A CA000052892 A CA 000052892A CA 52892D A CA52892D A CA 52892DA CA 52892 A CA52892 A CA 52892A
Authority
CA
Canada
Prior art keywords
exchange system
telephone exchange
automatic telephone
automatic
telephone
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
CA000052892A
Other languages
English (en)
Inventor
William Frederick Lounsbury
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA52892A publication Critical patent/CA52892A/fr
Expired legal-status Critical Current

Links

CA000052892A 1895-12-17 1895-12-17 Systeme d'echange de telephone automatique Expired CA52892A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA52892T 1895-12-17

Publications (1)

Publication Number Publication Date
CA52892A true CA52892A (fr) 1896-07-13

Family

ID=45169431

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000052892A Expired CA52892A (fr) 1895-12-17 1895-12-17 Systeme d'echange de telephone automatique

Country Status (1)

Country Link
CA (1) CA52892A (fr)

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