BE620888A - - Google Patents

Info

Publication number
BE620888A
BE620888A BE620888DA BE620888A BE 620888 A BE620888 A BE 620888A BE 620888D A BE620888D A BE 620888DA BE 620888 A BE620888 A BE 620888A
Authority
BE
Belgium
Application number
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.)
Publication of BE620888A publication Critical patent/BE620888A/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)
BE620888D 1961-08-07 BE620888A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR870399A FR1304132A (fr) 1961-08-07 1961-08-07 Capsule téléphonique autogénératrice perfectionnée

Publications (1)

Publication Number Publication Date
BE620888A true BE620888A (zh)

Family

ID=8760977

Family Applications (1)

Application Number Title Priority Date Filing Date
BE620888D BE620888A (zh) 1961-08-07

Country Status (3)

Country Link
BE (1) BE620888A (zh)
DE (1) DE1177685B (zh)
FR (1) FR1304132A (zh)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB603418A (en) * 1945-10-22 1948-06-15 Siemens Brothers & Co Ltd Improvements relating to electromagnetic telephone instruments

Also Published As

Publication number Publication date
DE1177685B (de) 1964-09-10
FR1304132A (fr) 1962-09-21

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