FR668041A - Improvements to telephone transmitters or other similar devices - Google Patents

Improvements to telephone transmitters or other similar devices

Info

Publication number
FR668041A
FR668041A FR668041DA FR668041A FR 668041 A FR668041 A FR 668041A FR 668041D A FR668041D A FR 668041DA FR 668041 A FR668041 A FR 668041A
Authority
FR
France
Prior art keywords
similar devices
telephone transmitters
transmitters
telephone
similar
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 FR668041A publication Critical patent/FR668041A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR668041D 1929-01-26 1929-01-26 Improvements to telephone transmitters or other similar devices Expired FR668041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR668041T 1929-01-26

Publications (1)

Publication Number Publication Date
FR668041A true FR668041A (en) 1929-10-26

Family

ID=9014772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR668041D Expired FR668041A (en) 1929-01-26 1929-01-26 Improvements to telephone transmitters or other similar devices

Country Status (1)

Country Link
FR (1) FR668041A (en)

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