CA14577A - Improvements on telephonic and telegraphic signalling apparatus - Google Patents

Improvements on telephonic and telegraphic signalling apparatus

Info

Publication number
CA14577A
CA14577A CA000014577A CA14577DA CA14577A CA 14577 A CA14577 A CA 14577A CA 000014577 A CA000014577 A CA 000014577A CA 14577D A CA14577D A CA 14577DA CA 14577 A CA14577 A CA 14577A
Authority
CA
Canada
Prior art keywords
telephonic
signalling apparatus
telegraphic
telegraphic signalling
signalling
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
CA000014577A
Other languages
French (fr)
Inventor
Alfred C. Brown
Henry A.A. Saunders
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 CA14577A publication Critical patent/CA14577A/en
Expired legal-status Critical Current

Links

CA000014577A Improvements on telephonic and telegraphic signalling apparatus Expired CA14577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA14577T

Publications (1)

Publication Number Publication Date
CA14577A true CA14577A (en) 1882-04-11

Family

ID=45131121

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000014577A Expired CA14577A (en) Improvements on telephonic and telegraphic signalling apparatus

Country Status (1)

Country Link
CA (1) CA14577A (en)

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