FR1604478A - - Google Patents

Info

Publication number
FR1604478A
FR1604478A FR1604478DA FR1604478A FR 1604478 A FR1604478 A FR 1604478A FR 1604478D A FR1604478D A FR 1604478DA FR 1604478 A FR1604478 A FR 1604478A
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
Other languages
French (fr)
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
Priority claimed from PL124503A external-priority patent/PL62019B1/pl
Application filed filed Critical
Application granted granted Critical
Publication of FR1604478A publication Critical patent/FR1604478A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/36—Devices for manipulating acoustic surface waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Light Receiving Elements (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR1604478D 1968-01-03 1968-12-31 Expired FR1604478A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL124503A PL62019B1 (ja) 1968-01-03

Publications (1)

Publication Number Publication Date
FR1604478A true FR1604478A (ja) 1971-11-08

Family

ID=19949832

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1604478D Expired FR1604478A (ja) 1968-01-03 1968-12-31

Country Status (3)

Country Link
DE (1) DE1900157A1 (ja)
FR (1) FR1604478A (ja)
GB (1) GB1251602A (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7216407A (ja) * 1972-12-04 1974-06-06
IT1246008B (it) * 1991-06-06 1994-11-07 Gd Spa Metodo e dispositivo per il controllo dell'integrita' esteriore di sigarette.

Also Published As

Publication number Publication date
GB1251602A (ja) 1971-10-27
DE1900157A1 (de) 1969-09-04

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Legal Events

Date Code Title Description
ST Notification of lapse