NL76872C - - Google Patents

Info

Publication number
NL76872C
NL76872C NL76872DA NL76872C NL 76872 C NL76872 C NL 76872C NL 76872D A NL76872D A NL 76872DA NL 76872 C NL76872 C NL 76872C
Authority
NL
Netherlands
Application number
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.)
Publication of NL76872C publication Critical patent/NL76872C/xx

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00Electromagnetic relays
    • H01H51/30Electromagnetic relays specially adapted for actuation by ac
    • H01H51/32Frequency relays; Mechanically-tuned relays
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
NL76872D 1948-11-11 NL76872C (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH662917X 1948-11-11

Publications (1)

Publication Number Publication Date
NL76872C true NL76872C (xx)

Family

ID=4527056

Family Applications (1)

Application Number Title Priority Date Filing Date
NL76872D NL76872C (xx) 1948-11-11

Country Status (4)

Country Link
DE (1) DE854228C (xx)
FR (1) FR989893A (xx)
GB (1) GB662917A (xx)
NL (1) NL76872C (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL93661C (xx) * 1954-12-20
BE544673A (xx) * 1955-04-13
CH350051A (de) * 1957-05-25 1960-11-15 Zellweger Uster Ag Elektromechanisches Bandfilter
CH566091A5 (xx) * 1972-06-12 1975-08-29 Elresor Sa

Also Published As

Publication number Publication date
FR989893A (fr) 1951-09-14
DE854228C (de) 1952-10-30
GB662917A (en) 1951-12-12

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