GB1069283A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Improvements in or relating to a photographic plate
Assignee: Individual
•
Filing: 1964-05-22
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Granted: —
•
Expires: 1984-05-22
Abstract
Abstract Aluminium sheets are degreased and then electrolytically anodized in 15% sulphuric acid to produce a porous aluminium oxide layer. The sheet is then treated with an alkali metal silicate to produce a porous alumino-silicate layer, or with an alkali metal dichromate, ferric ammonium oxalate or a water-soluble dye so that the pores are partially filled.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-09 16:58
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/03; B41N3/034; C; C25; C25D; C25D11/00; C25D11/02; C25D11/04
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