CA30732A - Telegraphie duplexe - Google Patents

Telegraphie duplexe

Info

Publication number
CA30732A
CA30732A CA000030732A CA30732DA CA30732A CA 30732 A CA30732 A CA 30732A CA 000030732 A CA000030732 A CA 000030732A CA 30732D A CA30732D A CA 30732DA CA 30732 A CA30732 A CA 30732A
Authority
CA
Canada
Prior art keywords
duplex telegraphy
telegraphy
duplex
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
CA000030732A
Other languages
English (en)
Inventor
Frank Jacobs
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Publication date
Application granted granted Critical
Publication of CA30732A publication Critical patent/CA30732A/fr
Expired legal-status Critical Current

Links

CA000030732A Telegraphie duplexe Expired CA30732A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA30732T

Publications (1)

Publication Number Publication Date
CA30732A true CA30732A (fr) 1889-02-07

Family

ID=45147272

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000030732A Expired CA30732A (fr) Telegraphie duplexe

Country Status (1)

Country Link
CA (1) CA30732A (fr)

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