FR2252620B1 - - Google Patents

Info

Publication number
FR2252620B1
FR2252620B1 FR7438434A FR7438434A FR2252620B1 FR 2252620 B1 FR2252620 B1 FR 2252620B1 FR 7438434 A FR7438434 A FR 7438434A FR 7438434 A FR7438434 A FR 7438434A FR 2252620 B1 FR2252620 B1 FR 2252620B1
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
FR7438434A
Other languages
French (fr)
Other versions
FR2252620A1 (de
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Priority claimed from JP13623173U external-priority patent/JPS5081204U/ja
Priority claimed from JP1160374A external-priority patent/JPS50105103A/ja
Priority claimed from JP7248074U external-priority patent/JPS512203U/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2252620A1 publication Critical patent/FR2252620A1/fr
Application granted granted Critical
Publication of FR2252620B1 publication Critical patent/FR2252620B1/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR7438434A 1973-11-26 1974-11-22 Expired FR2252620B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP13623173U JPS5081204U (de) 1973-11-26 1973-11-26
JP1160374A JPS50105103A (de) 1974-01-28 1974-01-28
JP7248074U JPS512203U (de) 1974-06-19 1974-06-19

Publications (2)

Publication Number Publication Date
FR2252620A1 FR2252620A1 (de) 1975-06-20
FR2252620B1 true FR2252620B1 (de) 1980-05-30

Family

ID=27279494

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7438434A Expired FR2252620B1 (de) 1973-11-26 1974-11-22

Country Status (6)

Country Link
BE (1) BE822549A (de)
CA (1) CA1012893A (de)
DE (1) DE2455400C3 (de)
FR (1) FR2252620B1 (de)
GB (1) GB1494645A (de)
NL (1) NL168979C (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1523364A (en) * 1975-02-19 1978-08-31 Matsushita Electric Ind Co Ltd Phonograph pickup

Also Published As

Publication number Publication date
NL7414924A (nl) 1975-05-28
FR2252620A1 (de) 1975-06-20
NL168979C (nl) 1982-05-17
BE822549A (fr) 1975-03-14
DE2455400A1 (de) 1975-10-16
DE2455400C3 (de) 1980-11-13
NL168979B (nl) 1981-12-16
GB1494645A (en) 1977-12-07
DE2455400B2 (de) 1980-03-13
CA1012893A (en) 1977-06-28

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Legal Events

Date Code Title Description
ST Notification of lapse