CA278216A - Signalling apparatus - Google Patents

Signalling apparatus

Info

Publication number
CA278216A
CA278216A CA278216A CA278216DA CA278216A CA 278216 A CA278216 A CA 278216A CA 278216 A CA278216 A CA 278216A CA 278216D A CA278216D A CA 278216DA CA 278216 A CA278216 A CA 278216A
Authority
CA
Canada
Prior art keywords
signalling apparatus
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
CA278216A
Other languages
French (fr)
Inventor
F. Bennett Arthur
R. Moore Charles
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA278216A publication Critical patent/CA278216A/en
Expired legal-status Critical Current

Links

CA278216A Signalling apparatus Expired CA278216A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA278216T

Publications (1)

Publication Number Publication Date
CA278216A true CA278216A (en) 1928-02-28

Family

ID=35211307

Family Applications (1)

Application Number Title Priority Date Filing Date
CA278216A Expired CA278216A (en) Signalling apparatus

Country Status (1)

Country Link
CA (1) CA278216A (en)

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