FR893722A - Process for the production of direct positives using the sabattier effect - Google Patents

Process for the production of direct positives using the sabattier effect

Info

Publication number
FR893722A
FR893722A FR893722DA FR893722A FR 893722 A FR893722 A FR 893722A FR 893722D A FR893722D A FR 893722DA FR 893722 A FR893722 A FR 893722A
Authority
FR
France
Prior art keywords
sabattier
production
effect
direct positives
positives
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 FR893722A publication Critical patent/FR893722A/en
Expired legal-status Critical Current

Links

FR893722D 1943-04-30 1943-04-30 Process for the production of direct positives using the sabattier effect Expired FR893722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR893722T 1943-04-30

Publications (1)

Publication Number Publication Date
FR893722A true FR893722A (en) 1944-10-24

Family

ID=9390232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR893722D Expired FR893722A (en) 1943-04-30 1943-04-30 Process for the production of direct positives using the sabattier effect

Country Status (1)

Country Link
FR (1) FR893722A (en)

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