1 result for “Union Carbide Corporation”
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Patent · January 23, 1923 · page 3
Non-conducting Covering for Boilers and other Vessels (US Patent 1,443,221, 1923)
In the document: …of hinge joints may replaced by copper or the mattress and by the air spaces provided other wire, lacingbe together the adjacent To all usion, it may concern: improve the non-conducting property of the wires…