FR685708A - Dégradeurs photographiques - Google Patents

Dégradeurs photographiques

Info

Publication number
FR685708A
FR685708A FR685708DA FR685708A FR 685708 A FR685708 A FR 685708A FR 685708D A FR685708D A FR 685708DA FR 685708 A FR685708 A FR 685708A
Authority
FR
France
Prior art keywords
gradients
photographic
photographic gradients
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
English (en)
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 FR685708A publication Critical patent/FR685708A/fr
Expired legal-status Critical Current

Links

FR685708D 1928-11-29 1929-11-28 Dégradeurs photographiques Expired FR685708A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI0036273 1928-11-29

Publications (1)

Publication Number Publication Date
FR685708A true FR685708A (fr) 1930-07-16

Family

ID=7189202

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685708D Expired FR685708A (fr) 1928-11-29 1929-11-28 Dégradeurs photographiques

Country Status (3)

Country Link
BE (1) BE365699A (fr)
FR (1) FR685708A (fr)
GB (1) GB334144A (fr)

Also Published As

Publication number Publication date
GB334144A (en) 1930-08-28
BE365699A (fr)

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