FR623585A - - Google Patents

Info

Publication number
FR623585A
FR623585A FR623585DA FR623585A FR 623585 A FR623585 A FR 623585A FR 623585D A FR623585D A FR 623585DA FR 623585 A FR623585 A FR 623585A
Authority
FR
France
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)
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 date
Application granted granted Critical
Publication of FR623585A publication Critical patent/FR623585A/fr
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR623585D 1925-10-24 Expired FR623585A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64596A US1718337A (en) 1925-10-24 1925-10-24 Loud-speaker motor

Publications (1)

Publication Number Publication Date
FR623585A true FR623585A (enrdf_load_stackoverflow) 1927-06-27

Family

ID=22057011

Family Applications (1)

Application Number Title Priority Date Filing Date
FR623585D Expired FR623585A (enrdf_load_stackoverflow) 1925-10-24

Country Status (3)

Country Link
US (1) US1718337A (enrdf_load_stackoverflow)
FR (1) FR623585A (enrdf_load_stackoverflow)
GB (1) GB260286A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
US1718337A (en) 1929-06-25
GB260286A (en) 1927-06-23

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