FR55520E - Piezoelectric crystal device - Google Patents

Piezoelectric crystal device

Info

Publication number
FR55520E
FR55520E FR55520DA FR55520E FR 55520 E FR55520 E FR 55520E FR 55520D A FR55520D A FR 55520DA FR 55520 E FR55520 E FR 55520E
Authority
FR
France
Prior art keywords
crystal device
piezoelectric crystal
piezoelectric
crystal
Prior art date
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
Other languages
French (fr)
Inventor
Daniel-Rene Beretzki
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
Application granted granted Critical
Publication of FR55520E publication Critical patent/FR55520E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electrotherapy Devices (AREA)
FR55520D 1942-09-05 1942-11-04 Piezoelectric crystal device Expired FR55520E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR979533T 1942-09-05
FR55520T 1942-11-04

Publications (1)

Publication Number Publication Date
FR55520E true FR55520E (en) 1952-09-01

Family

ID=26182843

Family Applications (1)

Application Number Title Priority Date Filing Date
FR55520D Expired FR55520E (en) 1942-09-05 1942-11-04 Piezoelectric crystal device

Country Status (2)

Country Link
CH (1) CH239450A (en)
FR (1) FR55520E (en)

Also Published As

Publication number Publication date
CH239450A (en) 1945-10-15

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