FR807730A - Process for producing mechanical records that can be copied - Google Patents

Process for producing mechanical records that can be copied

Info

Publication number
FR807730A
FR807730A FR807730DA FR807730A FR 807730 A FR807730 A FR 807730A FR 807730D A FR807730D A FR 807730DA FR 807730 A FR807730 A FR 807730A
Authority
FR
France
Prior art keywords
copied
producing mechanical
mechanical records
records
producing
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)
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR807730A publication Critical patent/FR807730A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
    • G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR807730D 1935-07-13 1936-06-27 Process for producing mechanical records that can be copied Expired FR807730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0052796 1935-07-13

Publications (1)

Publication Number Publication Date
FR807730A true FR807730A (en) 1937-01-20

Family

ID=7193438

Family Applications (1)

Application Number Title Priority Date Filing Date
FR807730D Expired FR807730A (en) 1935-07-13 1936-06-27 Process for producing mechanical records that can be copied

Country Status (1)

Country Link
FR (1) FR807730A (en)

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