CA63899A - Telephone exchange calling device - Google Patents

Telephone exchange calling device

Info

Publication number
CA63899A
CA63899A CA000063899A CA63899DA CA63899A CA 63899 A CA63899 A CA 63899A CA 000063899 A CA000063899 A CA 000063899A CA 63899D A CA63899D A CA 63899DA CA 63899 A CA63899 A CA 63899A
Authority
CA
Canada
Prior art keywords
telephone exchange
calling device
exchange calling
telephone
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
CA000063899A
Other languages
French (fr)
Inventor
Alexander E. Keith
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.)
STRONGER AUTOMATIC TELEPHONE EXCHANGE
Original Assignee
STRONGER AUTOMATIC TELEPHONE EXCHANGE
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 STRONGER AUTOMATIC TELEPHONE EXCHANGE filed Critical STRONGER AUTOMATIC TELEPHONE EXCHANGE
Application granted granted Critical
Publication of CA63899A publication Critical patent/CA63899A/en
Expired legal-status Critical Current

Links

CA000063899A 1898-10-01 1898-10-01 Telephone exchange calling device Expired CA63899A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA63899T 1898-10-01

Publications (1)

Publication Number Publication Date
CA63899A true CA63899A (en) 1899-09-16

Family

ID=45180437

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000063899A Expired CA63899A (en) 1898-10-01 1898-10-01 Telephone exchange calling device

Country Status (1)

Country Link
CA (1) CA63899A (en)

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