1 result for “Union Carbide Corporation”
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Patent · April 22, 1958 · page 1
Production of monochromatic and multi-coloured pictures (US Patent 2,831,765, 1958)
In the document: …Sohaiagesburg, Trans after the surface is treated with a gum-arabic-nitric acid vaal, Union of South Africa solution of such strength that it will not affect the warnish No Drawing. Application November 30, 1954 and…