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AU141387B2 - Improvements in or relating to devices and methods for producing photographic contrasts - Google Patents
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AU141387B2 - Improvements in or relating to devices and methods for producing photographic contrasts - Google Patents

Improvements in or relating to devices and methods for producing photographic contrasts

Info

Publication number
AU141387B2
AU141387B2 AU12490/47A AU1249047A AU141387B2 AU 141387 B2 AU141387 B2 AU 141387B2 AU 12490/47 A AU12490/47 A AU 12490/47A AU 1249047 A AU1249047 A AU 1249047A AU 141387 B2 AU141387 B2 AU 141387B2
Authority
AU
Australia
Prior art keywords
relating
methods
devices
producing photographic
contrasts
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
AU12490/47A
Other versions
AU1249047A (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of AU141387B2 publication Critical patent/AU141387B2/en
Publication of AU1249047A publication Critical patent/AU1249047A/en
Expired legal-status Critical Current

Links

AU12490/47A 1947-05-29 Improvements in or relating to devices and methods for producing photographic contrasts Expired AU141387B2 (en)

Publications (2)

Publication Number Publication Date
AU141387B2 true AU141387B2 (en) 1947-06-26
AU1249047A AU1249047A (en) 1947-06-26

Family

ID=

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