FR689615A - Telephone transmission systems - Google Patents

Telephone transmission systems

Info

Publication number
FR689615A
FR689615A FR689615DA FR689615A FR 689615 A FR689615 A FR 689615A FR 689615D A FR689615D A FR 689615DA FR 689615 A FR689615 A FR 689615A
Authority
FR
France
Prior art keywords
transmission systems
telephone transmission
telephone
systems
transmission
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 FR689615A publication Critical patent/FR689615A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/12—Arrangements for exhibiting specific transmission characteristics
    • H01B11/16—Cables, e.g. submarine cables, with coils or other devices incorporated during cable manufacture
FR689615D 1929-03-11 1930-02-08 Telephone transmission systems Expired FR689615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7968/29A GB330580A (en) 1929-03-11 1929-03-11 Telephone transmission systems

Publications (1)

Publication Number Publication Date
FR689615A true FR689615A (en) 1930-09-09

Family

ID=9843229

Family Applications (1)

Application Number Title Priority Date Filing Date
FR689615D Expired FR689615A (en) 1929-03-11 1930-02-08 Telephone transmission systems

Country Status (3)

Country Link
US (1) US1840113A (en)
FR (1) FR689615A (en)
GB (1) GB330580A (en)

Also Published As

Publication number Publication date
GB330580A (en) 1930-06-11
US1840113A (en) 1932-01-05

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