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FR693276A - Extra-light phonographic disc allowing the recording of phonetic waves and their reproduction - Google Patents

Extra-light phonographic disc allowing the recording of phonetic waves and their reproduction

Info

Publication number
FR693276A
FR693276A FR693276DA FR693276A FR 693276 A FR693276 A FR 693276A FR 693276D A FR693276D A FR 693276DA FR 693276 A FR693276 A FR 693276A
Authority
FR
France
Prior art keywords
phonetic
reproduction
extra
waves
recording
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
Armando Alvares Penteado
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 FR693276A publication Critical patent/FR693276A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/10—Biofuels, e.g. bio-diesel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
FR693276D 1929-06-12 1929-06-12 Extra-light phonographic disc allowing the recording of phonetic waves and their reproduction Expired FR693276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR693276T 1929-06-12

Publications (1)

Publication Number Publication Date
FR693276A true FR693276A (en) 1930-11-18

Family

ID=9040609

Family Applications (1)

Application Number Title Priority Date Filing Date
FR693276D Expired FR693276A (en) 1929-06-12 1929-06-12 Extra-light phonographic disc allowing the recording of phonetic waves and their reproduction

Country Status (1)

Country Link
FR (1) FR693276A (en)

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