FR676931A - Methods and devices for obtaining phonograms on film or plates - Google Patents

Methods and devices for obtaining phonograms on film or plates

Info

Publication number
FR676931A
FR676931A FR676931DA FR676931A FR 676931 A FR676931 A FR 676931A FR 676931D A FR676931D A FR 676931DA FR 676931 A FR676931 A FR 676931A
Authority
FR
France
Prior art keywords
phonograms
obtaining
plates
film
methods
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
Karl Wahl
Carl Roehrich
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 FR676931A publication Critical patent/FR676931A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
    • F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
    • F04B37/18—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids
    • F04B37/20—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use for specific elastic fluids for wet gases, e.g. wet air

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR676931D 1928-06-20 1929-06-20 Methods and devices for obtaining phonograms on film or plates Expired FR676931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE676931X 1928-06-20

Publications (1)

Publication Number Publication Date
FR676931A true FR676931A (en) 1930-02-28

Family

ID=6594010

Family Applications (1)

Application Number Title Priority Date Filing Date
FR676931D Expired FR676931A (en) 1928-06-20 1929-06-20 Methods and devices for obtaining phonograms on film or plates

Country Status (1)

Country Link
FR (1) FR676931A (en)

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