FR700069A - Dispositif destiné à la reproduction des sons - Google Patents

Dispositif destiné à la reproduction des sons

Info

Publication number
FR700069A
FR700069A FR700069DA FR700069A FR 700069 A FR700069 A FR 700069A FR 700069D A FR700069D A FR 700069DA FR 700069 A FR700069 A FR 700069A
Authority
FR
France
Prior art keywords
sound reproduction
reproduction
sound
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR700069A publication Critical patent/FR700069A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
    • H03G9/06—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR700069D 1929-09-25 1930-08-04 Dispositif destiné à la reproduction des sons Expired FR700069A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL700069X 1929-09-25

Publications (1)

Publication Number Publication Date
FR700069A true FR700069A (fr) 1931-02-24

Family

ID=19809125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700069D Expired FR700069A (fr) 1929-09-25 1930-08-04 Dispositif destiné à la reproduction des sons

Country Status (1)

Country Link
FR (1) FR700069A (fr)

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