FR620382A - Electro-magnetic device - Google Patents

Electro-magnetic device

Info

Publication number
FR620382A
FR620382A FR620382DA FR620382A FR 620382 A FR620382 A FR 620382A FR 620382D A FR620382D A FR 620382DA FR 620382 A FR620382 A FR 620382A
Authority
FR
France
Prior art keywords
electro
magnetic device
magnetic
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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
Priority claimed from US66624A external-priority patent/US1709571A/en
Priority claimed from US111209A external-priority patent/US1628666A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR620382A publication Critical patent/FR620382A/en
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
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/16—Mounting or connecting stylus to transducer with or without damping means

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR620382D 1925-11-03 1926-07-02 Electro-magnetic device Expired FR620382A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66624A US1709571A (en) 1925-11-03 1925-11-03 Electromechanical translating device
US111209A US1628666A (en) 1926-05-24 1926-05-24 Electromagnetic device

Publications (1)

Publication Number Publication Date
FR620382A true FR620382A (en) 1927-04-21

Family

ID=26746972

Family Applications (2)

Application Number Title Priority Date Filing Date
FR620382D Expired FR620382A (en) 1925-11-03 1926-07-02 Electro-magnetic device
FR32964D Expired FR32964E (en) 1925-11-03 1927-01-11 Electro-magnetic device

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR32964D Expired FR32964E (en) 1925-11-03 1927-01-11 Electro-magnetic device

Country Status (4)

Country Link
BE (1) BE335046A (en)
FR (2) FR620382A (en)
GB (2) GB260946A (en)
NL (1) NL22500C (en)

Also Published As

Publication number Publication date
GB271409A (en) 1927-10-27
FR32964E (en) 1928-06-06
NL22500C (en)
GB260946A (en) 1927-10-10
BE335046A (en)

Similar Documents

Publication Publication Date Title
FR594265A (en) Instant junction device
FR594879A (en) Cut-off device
FR599605A (en) Soap device
FR612084A (en) Advertising device
FR620382A (en) Electro-magnetic device
FR622616A (en) Servo-brake device
FR634033A (en) Multiple amplifier device
FR31477E (en) Paper attachment device
FR596831A (en) Triangular construction device
FR597173A (en) Advertising device
FR613934A (en) Anti-glare device
FR639302A (en) Speaker device
FR627777A (en) Advanced electro-magnetic device
FR609796A (en) Electro-magnetic clutch device
FR598827A (en) Distribution device
FR625071A (en) Guiding device
FR600127A (en) Accounting device
FR598049A (en) Advertising device
DK41769C (en) Electromagnetic Device.
FR608496A (en) Hydrothermal fireplace-radiator device
FR589457A (en) Anti-vibrator device
FR597251A (en) Warning device
FR576329A (en) Thermionic device
FR576328A (en) Thermionic device
CH125514A (en) Electromagnetic vibration device.