FR879363A - Filtre à quartz - Google Patents

Filtre à quartz

Info

Publication number
FR879363A
FR879363A FR879363DA FR879363A FR 879363 A FR879363 A FR 879363A FR 879363D A FR879363D A FR 879363DA FR 879363 A FR879363 A FR 879363A
Authority
FR
France
Prior art keywords
quartz filter
quartz
filter
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
English (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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR879363A publication Critical patent/FR879363A/fr
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
    • H03H9/545—Filters comprising resonators of piezoelectric or electrostrictive material including active elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
FR879363D 1941-10-14 1941-10-14 Filtre à quartz Expired FR879363A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR879363T 1941-10-14

Publications (1)

Publication Number Publication Date
FR879363A true FR879363A (fr) 1943-02-22

Family

ID=9361773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR879363D Expired FR879363A (fr) 1941-10-14 1941-10-14 Filtre à quartz

Country Status (1)

Country Link
FR (1) FR879363A (fr)

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