FR1088374A - Improvements to electro-mechanical reading devices - Google Patents

Improvements to electro-mechanical reading devices

Info

Publication number
FR1088374A
FR1088374A FR1088374DA FR1088374A FR 1088374 A FR1088374 A FR 1088374A FR 1088374D A FR1088374D A FR 1088374DA FR 1088374 A FR1088374 A FR 1088374A
Authority
FR
France
Prior art keywords
electro
reading devices
mechanical reading
mechanical
devices
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries Ltd
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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Application granted granted Critical
Publication of FR1088374A publication Critical patent/FR1088374A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/06—Gramophone pick-ups using a stylus; Recorders using a stylus comprising two or more styli or transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
FR1088374D 1952-08-29 1953-08-29 Improvements to electro-mechanical reading devices Expired FR1088374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2171652A GB729233A (en) 1952-08-29 1952-08-29 Improvements in or relating to electro-mechanical transducing devices

Publications (1)

Publication Number Publication Date
FR1088374A true FR1088374A (en) 1955-03-07

Family

ID=10167645

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1088374D Expired FR1088374A (en) 1952-08-29 1953-08-29 Improvements to electro-mechanical reading devices

Country Status (2)

Country Link
FR (1) FR1088374A (en)
GB (1) GB729233A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964595A (en) * 1956-06-18 1960-12-13 Philco Corp Sound reproducing apparatus
US3000639A (en) * 1959-02-18 1961-09-19 Astatic Corp Stylus securing means for phonograph pickup cartridges

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025165B (en) * 1955-11-11 1958-02-27 Telefunken Gmbh Needle carrier for crystal pickups with two needles lying one behind the other, optionally switchable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2964595A (en) * 1956-06-18 1960-12-13 Philco Corp Sound reproducing apparatus
US3000639A (en) * 1959-02-18 1961-09-19 Astatic Corp Stylus securing means for phonograph pickup cartridges

Also Published As

Publication number Publication date
GB729233A (en) 1955-05-04

Similar Documents

Publication Publication Date Title
FR1086820A (en) Improvements made to physiotherapeutic devices
FR1076469A (en) Improvements to deformable cases
FR67884E (en) Improvements to rear-view devices
FR1073180A (en) Improvements to elastic torsion devices
FR1088374A (en) Improvements to electro-mechanical reading devices
FR1078564A (en) Improvements to oleopneumatic devices
FR1056646A (en) Improvements to time devices
FR1085042A (en) Improvements to radio-navigation devices
FR1053584A (en) Improvements to heated vibro-massage devices
FR1064054A (en) Improvements to planning devices
FR1085833A (en) Improvements to sandblasting devices
FR1058539A (en) Improvements to duplexing devices
FR1098908A (en) Improvements to linear integrators
FR64388E (en) Improvements to projection devices
FR1058659A (en) Improvements to cutting devices
FR1074470A (en) Improvements to aeromotors
FR1053126A (en) Improvements to ventilation devices
FR1058418A (en) Improvements made to loading devices
FR1053628A (en) Improvements made to contactor devices
FR1058971A (en) Improvements to mechanical movement transformation devices
FR1073415A (en) Improvements to braking devices
ES32446Y (en) Writing device
FR1089287A (en) Improvements to combustion devices
FR1089017A (en) Improvements to combustion devices
FR1054443A (en) Improvements to submarines