FR477813A - Improvements to automatic or semi-automatic telephone network systems - Google Patents

Improvements to automatic or semi-automatic telephone network systems

Info

Publication number
FR477813A
FR477813A FR477813DA FR477813A FR 477813 A FR477813 A FR 477813A FR 477813D A FR477813D A FR 477813DA FR 477813 A FR477813 A FR 477813A
Authority
FR
France
Prior art keywords
automatic
semi
telephone network
network systems
automatic telephone
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
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR477813A publication Critical patent/FR477813A/en
Expired legal-status Critical Current

Links

FR477813D 1913-10-17 1914-10-15 Improvements to automatic or semi-automatic telephone network systems Expired FR477813A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB477813X 1913-10-17

Publications (1)

Publication Number Publication Date
FR477813A true FR477813A (en) 1915-11-10

Family

ID=43351520

Family Applications (1)

Application Number Title Priority Date Filing Date
FR477813D Expired FR477813A (en) 1913-10-17 1914-10-15 Improvements to automatic or semi-automatic telephone network systems

Country Status (1)

Country Link
FR (1) FR477813A (en)

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