CA277214A - Systeme de telegraphie duplex - Google Patents

Systeme de telegraphie duplex

Info

Publication number
CA277214A
CA277214A CA277214A CA277214DA CA277214A CA 277214 A CA277214 A CA 277214A CA 277214 A CA277214 A CA 277214A CA 277214D A CA277214D A CA 277214DA CA 277214 A CA277214 A CA 277214A
Authority
CA
Canada
Prior art keywords
telegraphy
duplex system
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
CA277214A
Other languages
English (en)
Inventor
W. Drake Herbert
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.)
Western Union Telegraph Co
Original Assignee
Western Union Telegraph Co
Publication date
Application granted granted Critical
Publication of CA277214A publication Critical patent/CA277214A/fr
Expired legal-status Critical Current

Links

CA277214A Systeme de telegraphie duplex Expired CA277214A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA277214T

Publications (1)

Publication Number Publication Date
CA277214A true CA277214A (fr) 1928-01-17

Family

ID=35210305

Family Applications (1)

Application Number Title Priority Date Filing Date
CA277214A Expired CA277214A (fr) Systeme de telegraphie duplex

Country Status (1)

Country Link
CA (1) CA277214A (fr)

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