FR614866A - Process for the weakening of silver layers in photographic images - Google Patents

Process for the weakening of silver layers in photographic images

Info

Publication number
FR614866A
FR614866A FR614866DA FR614866A FR 614866 A FR614866 A FR 614866A FR 614866D A FR614866D A FR 614866DA FR 614866 A FR614866 A FR 614866A
Authority
FR
France
Prior art keywords
weakening
photographic images
silver layers
silver
layers
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.)
TAESCHNER E
Original Assignee
TAESCHNER E
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 TAESCHNER E filed Critical TAESCHNER E
Application granted granted Critical
Publication of FR614866A publication Critical patent/FR614866A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/40—Chemically transforming developed images
    • G03C5/42—Reducing; Intensifying
FR614866D 1926-06-07 1926-04-21 Process for the weakening of silver layers in photographic images Expired FR614866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14313/26A GB260892A (en) 1926-06-07 1926-06-07 Improved method of and means for reducing the intensity of photographic silver images

Publications (1)

Publication Number Publication Date
FR614866A true FR614866A (en) 1926-12-24

Family

ID=10038915

Family Applications (1)

Application Number Title Priority Date Filing Date
FR614866D Expired FR614866A (en) 1926-06-07 1926-04-21 Process for the weakening of silver layers in photographic images

Country Status (3)

Country Link
US (1) US1656235A (en)
FR (1) FR614866A (en)
GB (1) GB260892A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567236A (en) * 1957-05-15

Also Published As

Publication number Publication date
GB260892A (en) 1926-11-11
US1656235A (en) 1928-01-17

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