NL6813994A - - Google Patents

Info

Publication number
NL6813994A
NL6813994A NL6813994A NL6813994A NL6813994A NL 6813994 A NL6813994 A NL 6813994A NL 6813994 A NL6813994 A NL 6813994A NL 6813994 A NL6813994 A NL 6813994A NL 6813994 A NL6813994 A NL 6813994A
Authority
NL
Netherlands
Application number
NL6813994A
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 filed Critical
Priority to NL6813994A priority Critical patent/NL6813994A/xx
Priority to AT911469A priority patent/AT309549B/de
Priority to DE19691948933 priority patent/DE1948933A1/de
Priority to GB1226077D priority patent/GB1226077A/en
Priority to FR6933265A priority patent/FR2019219A1/fr
Publication of NL6813994A publication Critical patent/NL6813994A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
NL6813994A 1968-09-30 1968-09-30 NL6813994A (un)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL6813994A NL6813994A (un) 1968-09-30 1968-09-30
AT911469A AT309549B (de) 1968-09-30 1969-09-26 Wandler zur Umwandlung von akustischen Schwingungen in elektrische Schwingungen und umgekehrt
DE19691948933 DE1948933A1 (de) 1968-09-30 1969-09-27 Wandler zur Umwandlung von akustischen Schwingungen in elektrische Schwingungen und umgekehrt in Form einer Schwingplatte mit mindestens einer Schicht aus piezoelektrischem Material
GB1226077D GB1226077A (un) 1968-09-30 1969-09-29
FR6933265A FR2019219A1 (un) 1968-09-30 1969-09-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6813994A NL6813994A (un) 1968-09-30 1968-09-30

Publications (1)

Publication Number Publication Date
NL6813994A true NL6813994A (un) 1970-04-01

Family

ID=19804800

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6813994A NL6813994A (un) 1968-09-30 1968-09-30

Country Status (2)

Country Link
AT (1) AT309549B (un)
NL (1) NL6813994A (un)

Also Published As

Publication number Publication date
AT309549B (de) 1973-08-27

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