FR870143A - Monture de capsules parlantes ou capsules de téléphone - Google Patents

Monture de capsules parlantes ou capsules de téléphone

Info

Publication number
FR870143A
FR870143A FR870143DA FR870143A FR 870143 A FR870143 A FR 870143A FR 870143D A FR870143D A FR 870143DA FR 870143 A FR870143 A FR 870143A
Authority
FR
France
Prior art keywords
capsules
talking
mount
telephone
telephone capsules
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
English (en)
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Application granted granted Critical
Publication of FR870143A publication Critical patent/FR870143A/fr
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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/22—Clamping rim of diaphragm or cone against seating

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
FR870143D 1940-02-19 1941-02-18 Monture de capsules parlantes ou capsules de téléphone Expired FR870143A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE870143X 1940-02-19

Publications (1)

Publication Number Publication Date
FR870143A true FR870143A (fr) 1942-03-03

Family

ID=6804150

Family Applications (1)

Application Number Title Priority Date Filing Date
FR870143D Expired FR870143A (fr) 1940-02-19 1941-02-18 Monture de capsules parlantes ou capsules de téléphone

Country Status (2)

Country Link
BE (1) BE440566A (enrdf_load_stackoverflow)
FR (1) FR870143A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE440566A (enrdf_load_stackoverflow)

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