1 result for “Union Carbide Corporation”
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Patent · July 24, 1928 · page 2
Machine for Drilling and Countersinking Brake Linings (US Patent 1,678,207, 1928)
In the document: …I provide means for Fig.2 is a front elevation of the same. upwardly moving the plunger in unison Fig. 3 is an enlarged fragmentary view of With the drill after the drill has formed a…