FR634312A - Improvement in photoengraving processes - Google Patents

Improvement in photoengraving processes

Info

Publication number
FR634312A
FR634312A FR634312DA FR634312A FR 634312 A FR634312 A FR 634312A FR 634312D A FR634312D A FR 634312DA FR 634312 A FR634312 A FR 634312A
Authority
FR
France
Prior art keywords
improvement
photoengraving processes
photoengraving
processes
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.)
DEPTHA TONE CORP
Original Assignee
DEPTHA TONE CORP
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 DEPTHA TONE CORP filed Critical DEPTHA TONE CORP
Application granted granted Critical
Publication of FR634312A publication Critical patent/FR634312A/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
    • G03F1/92—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 prepared from printing surfaces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Printing Methods (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
FR634312D 1926-05-18 1927-05-12 Improvement in photoengraving processes Expired FR634312A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US109878A US1643526A (en) 1926-05-18 1926-05-18 Photo-engraving process

Publications (1)

Publication Number Publication Date
FR634312A true FR634312A (en) 1928-02-16

Family

ID=22330039

Family Applications (1)

Application Number Title Priority Date Filing Date
FR634312D Expired FR634312A (en) 1926-05-18 1927-05-12 Improvement in photoengraving processes

Country Status (3)

Country Link
US (1) US1643526A (en)
FR (1) FR634312A (en)
GB (1) GB271468A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020433A (en) * 1956-05-18 1962-02-06 Gen Electric Storage electrode structure
CH581543A5 (en) * 1974-07-30 1976-11-15 De La Rue Giori Sa

Also Published As

Publication number Publication date
US1643526A (en) 1927-09-27
GB271468A (en) 1927-12-22

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