BG20991A1 - - Google Patents

Info

Publication number
BG20991A1
BG20991A1 BG1747571A BG1747571A BG20991A1 BG 20991 A1 BG20991 A1 BG 20991A1 BG 1747571 A BG1747571 A BG 1747571A BG 1747571 A BG1747571 A BG 1747571A BG 20991 A1 BG20991 A1 BG 20991A1
Authority
BG
Bulgaria
Application number
BG1747571A
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
Publication of BG20991A1 publication Critical patent/BG20991A1/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
    • 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)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Telephone Set Structure (AREA)
BG1747571A 1970-10-19 1971-05-05 BG20991A1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD15086870 1970-10-19

Publications (1)

Publication Number Publication Date
BG20991A1 true BG20991A1 (enrdf_load_stackoverflow) 1976-01-20

Family

ID=5483085

Family Applications (1)

Application Number Title Priority Date Filing Date
BG1747571A BG20991A1 (enrdf_load_stackoverflow) 1970-10-19 1971-05-05

Country Status (6)

Country Link
BG (1) BG20991A1 (enrdf_load_stackoverflow)
CS (1) CS158772B1 (enrdf_load_stackoverflow)
DE (1) DE2120001C3 (enrdf_load_stackoverflow)
HU (1) HU166721B (enrdf_load_stackoverflow)
SU (1) SU479267A1 (enrdf_load_stackoverflow)
YU (1) YU34749B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
CS158772B1 (enrdf_load_stackoverflow) 1974-12-27
HU166721B (enrdf_load_stackoverflow) 1975-05-28
YU34749B (en) 1979-12-31
DE2120001B2 (de) 1979-03-22
SU479267A1 (ru) 1975-07-30
DE2120001C3 (de) 1979-10-31
YU236671A (en) 1979-07-10
DE2120001A1 (de) 1972-04-20

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