FR862315A - Telephone and analog transmission systems - Google Patents

Telephone and analog transmission systems

Info

Publication number
FR862315A
FR862315A FR862315DA FR862315A FR 862315 A FR862315 A FR 862315A FR 862315D A FR862315D A FR 862315DA FR 862315 A FR862315 A FR 862315A
Authority
FR
France
Prior art keywords
telephone
transmission systems
analog transmission
analog
systems
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 FR862315A publication Critical patent/FR862315A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/40—Applications of speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR862315D 1938-12-14 1939-12-12 Telephone and analog transmission systems Expired FR862315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB233307X 1938-12-14

Publications (1)

Publication Number Publication Date
FR862315A true FR862315A (en) 1941-03-04

Family

ID=10193869

Family Applications (1)

Application Number Title Priority Date Filing Date
FR862315D Expired FR862315A (en) 1938-12-14 1939-12-12 Telephone and analog transmission systems

Country Status (4)

Country Link
BE (1) BE437367A (en)
CH (1) CH233307A (en)
FR (1) FR862315A (en)
NL (1) NL61476C (en)

Also Published As

Publication number Publication date
BE437367A (en)
CH233307A (en) 1944-07-15
NL61476C (en)

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