FR2239811B1 - - Google Patents

Info

Publication number
FR2239811B1
FR2239811B1 FR7425348A FR7425348A FR2239811B1 FR 2239811 B1 FR2239811 B1 FR 2239811B1 FR 7425348 A FR7425348 A FR 7425348A FR 7425348 A FR7425348 A FR 7425348A FR 2239811 B1 FR2239811 B1 FR 2239811B1
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
FR7425348A
Other languages
French (fr)
Other versions
FR2239811A1 (en
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.)
Telettra Laboratori di Telefonia Elettronica e Radio SpA
Original Assignee
Telettra Laboratori di Telefonia Elettronica e Radio SpA
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 Telettra Laboratori di Telefonia Elettronica e Radio SpA filed Critical Telettra Laboratori di Telefonia Elettronica e Radio SpA
Publication of FR2239811A1 publication Critical patent/FR2239811A1/fr
Application granted granted Critical
Publication of FR2239811B1 publication Critical patent/FR2239811B1/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/48Coupling means therefor
    • H03H9/50Mechanical coupling means

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR7425348A 1973-08-03 1974-07-22 Expired FR2239811B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2748273A IT992811B (en) 1973-08-03 1973-08-03 ELECTROMECHANICAL FILTER WITH FLEXIBLE VIBRATING RESONATORS

Publications (2)

Publication Number Publication Date
FR2239811A1 FR2239811A1 (en) 1975-02-28
FR2239811B1 true FR2239811B1 (en) 1978-01-20

Family

ID=11221735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425348A Expired FR2239811B1 (en) 1973-08-03 1974-07-22

Country Status (8)

Country Link
BR (1) BR7406380D0 (en)
DE (1) DE2433874C3 (en)
ES (1) ES428885A1 (en)
FR (1) FR2239811B1 (en)
GB (1) GB1482112A (en)
IT (1) IT992811B (en)
RO (1) RO80736A (en)
YU (1) YU36321B (en)

Also Published As

Publication number Publication date
YU210174A (en) 1981-08-31
IT992811B (en) 1975-09-30
ES428885A1 (en) 1976-09-01
GB1482112A (en) 1977-08-03
RO80736B (en) 1983-05-30
DE2433874B2 (en) 1977-11-03
DE2433874C3 (en) 1978-06-15
BR7406380D0 (en) 1975-05-20
FR2239811A1 (en) 1975-02-28
DE2433874A1 (en) 1975-02-13
RO80736A (en) 1983-06-01
YU36321B (en) 1982-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse