CA52872A - Electrical exchange system - Google Patents

Electrical exchange system

Info

Publication number
CA52872A
CA52872A CA000052872A CA52872DA CA52872A CA 52872 A CA52872 A CA 52872A CA 000052872 A CA000052872 A CA 000052872A CA 52872D A CA52872D A CA 52872DA CA 52872 A CA52872 A CA 52872A
Authority
CA
Canada
Prior art keywords
exchange system
electrical exchange
electrical
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
CA000052872A
Other languages
French (fr)
Inventor
Arthur Edward Parsons
George William Hey
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 CA52872A publication Critical patent/CA52872A/en
Expired legal-status Critical Current

Links

CA000052872A 1896-02-10 1896-02-10 Electrical exchange system Expired CA52872A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA52872T 1896-02-10

Publications (1)

Publication Number Publication Date
CA52872A true CA52872A (en) 1896-07-10

Family

ID=45169411

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000052872A Expired CA52872A (en) 1896-02-10 1896-02-10 Electrical exchange system

Country Status (1)

Country Link
CA (1) CA52872A (en)

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