1 result for “Union Carbide Corporation”
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Patent · December 30, 1941 · page 4
Pipe Fitting of Felted Asbestos and Cement (US Patent 2,267,817, 1941)
In the document: …covering and forming all at one Operation whereby the individual sheets connect at the joints and form a union at the joints of the same character as that which is formed pro gressively to produce the…