1 result for “Union Carbide Corporation”
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Patent · January 25, 1927 · page 2
Heat Insulating Material (US Patent 1,615,801, 1927)
In the document: …similar scale, through a fragment of such material; material, serving to make an extremely ef and fective union between the insulating core 25 Fig. 3 is a perspective view of a frag. and the metal. ment…