DE8902174U1 - - Google Patents

Info

Publication number
DE8902174U1
DE8902174U1 DE8902174U DE8902174U DE8902174U1 DE 8902174 U1 DE8902174 U1 DE 8902174U1 DE 8902174 U DE8902174 U DE 8902174U DE 8902174 U DE8902174 U DE 8902174U DE 8902174 U1 DE8902174 U1 DE 8902174U1
Authority
DE
Germany
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
DE8902174U
Other languages
German (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE8902174U priority Critical patent/DE8902174U1/de
Publication of DE8902174U1 publication Critical patent/DE8902174U1/de
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
    • H04R17/02—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • 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
    • 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
DE8902174U 1989-02-23 1989-02-23 Expired DE8902174U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8902174U DE8902174U1 (en) 1989-02-23 1989-02-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8902174U DE8902174U1 (en) 1989-02-23 1989-02-23

Publications (1)

Publication Number Publication Date
DE8902174U1 true DE8902174U1 (en) 1989-04-13

Family

ID=6836359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8902174U Expired DE8902174U1 (en) 1989-02-23 1989-02-23

Country Status (1)

Country Link
DE (1) DE8902174U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432558A2 (en) * 1989-12-15 1991-06-19 Siemens Aktiengesellschaft Piezoelectric transducer unit for telephone sets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432558A2 (en) * 1989-12-15 1991-06-19 Siemens Aktiengesellschaft Piezoelectric transducer unit for telephone sets
EP0432558A3 (en) * 1989-12-15 1992-03-04 Siemens Aktiengesellschaft Piezoelectric transducer unit for telephone sets

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