BE474895A - - Google Patents

Info

Publication number
BE474895A
BE474895A BE474895DA BE474895A BE 474895 A BE474895 A BE 474895A BE 474895D A BE474895D A BE 474895DA BE 474895 A BE474895 A BE 474895A
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 BE474895A publication Critical patent/BE474895A/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
BE474895D 1941-01-31 BE474895A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US376874A US2313129A (en) 1941-01-31 1941-01-31 Art of mounting piezoelectric crystals

Publications (1)

Publication Number Publication Date
BE474895A true BE474895A (xx)

Family

ID=23486852

Family Applications (1)

Application Number Title Priority Date Filing Date
BE474895D BE474895A (xx) 1941-01-31

Country Status (4)

Country Link
US (1) US2313129A (xx)
BE (1) BE474895A (xx)
FR (1) FR950240A (xx)
GB (1) GB551954A (xx)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE483732A (xx) * 1944-05-03
US2476414A (en) * 1945-05-24 1949-07-19 William H Hutter Phonograph pickup having plastic torsion arm
US2510585A (en) * 1945-08-21 1950-06-06 Rca Corp Dynamic galvanometer
US2510342A (en) * 1946-04-03 1950-06-06 Avco Mfg Corp Pickup mounting
US2562741A (en) * 1947-02-13 1951-07-31 Dictaphone Corp Method of making sealed electromechanical translating devices
US2539297A (en) * 1947-02-27 1951-01-23 Lazaro Luis Nicolas Gomez De Electric musical instrument
US2518861A (en) * 1947-03-21 1950-08-15 Brush Dev Co Phonograph pickup
US2519185A (en) * 1947-03-21 1950-08-15 Brush Dev Co Phonograph pickup
US2564054A (en) * 1947-10-10 1951-08-14 Magnavox Co Phonograph pickup and mechanical motion converting system therefor
US2594948A (en) * 1947-10-30 1952-04-29 Brush Dev Co Electromechanical transducer unit
US2498210A (en) * 1948-11-02 1950-02-21 Avco Mfg Corp Piezoelectric phonograph pickup device
NL77992C (xx) * 1950-03-02
DE1026979B (de) * 1952-03-13 1958-03-27 Electroacustik Ges M B H Vorrichtung zur Herstellung einer loesbaren Verbindung zwischen einem Tonabnehmer und einem Abtastorgan
DE1026980B (de) * 1952-03-27 1958-03-27 Electroacustik Ges M B H Piezoelektrischer Tonabnehmer
DE1029173B (de) * 1952-09-15 1958-04-30 Daniel Tefi Apparatebau Piezoelektrischer Tonabnehmer
DE1053802B (de) * 1953-05-28 1959-03-26 Tefi Appbau Dr Daniel K G Verfahren zur Herstellung eines piezoelektrischen Tonabnehmers
US2879413A (en) * 1956-08-21 1959-03-24 Sonotone Corp Phonograph pickups
US2839695A (en) * 1957-01-31 1958-06-17 Donald H Robey Frequency controllable piezo-electric resonator
US3377439A (en) * 1958-04-03 1968-04-09 Erie Technological Prod Inc Binaural piezoelectric pickup
GB1052623A (xx) * 1962-06-20
US3465747A (en) * 1964-11-17 1969-09-09 Vernon L Rogallo Ballistocardiograph
US3374663A (en) * 1965-04-16 1968-03-26 Electronic Systems Inc Vibration detector
US3582692A (en) * 1968-05-01 1971-06-01 U S Research Corp Resiliently supported sensing transducer
US4051396A (en) * 1974-02-28 1977-09-27 Channel Products, Inc. Encapsulation to prevent fracture of piezoelectric high voltage mechanism
WO1984001499A1 (en) * 1982-10-19 1984-04-26 Ivac Corp Electronic sphygmomanometer
US7622844B1 (en) * 2003-12-30 2009-11-24 Hipercon, Llc Metal fiber brush interface conditioning

Also Published As

Publication number Publication date
US2313129A (en) 1943-03-09
FR950240A (fr) 1949-09-21
GB551954A (en) 1943-03-17

Similar Documents

Publication Publication Date Title
BE442109A (xx)
IT392252B (xx)
FR959684A (xx)
BE443214A (xx)
BE442867A (xx)
BE442706A (xx)
BE442685A (xx)
BE442682A (xx)
BE442675A (xx)
BE442548A (xx)
BE442228A (xx)
BE442153A (xx)
BE442130A (xx)
BE442102A (xx)
BE440997A (xx)
BE441833A (xx)
BE441713A (xx)
BE441671A (xx)
BE441636A (xx)
BE441571A (xx)
BE441524A (xx)
BE441477A (xx)
NL62823C (xx)
BE441273A (xx)
BE441261A (xx)