1 result for “Union Carbide Corporation”
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Patent · September 24, 1929 · page 5
Oblique Shingle Slab (US Patent 1,729,212, 1929)
In the document: …24, 1929 UNITED STATES PATENT OFFICE ALBERT C. FISCHER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PHILIP CAREY MANU FACTURING COMPANY, A CORPORATION of oHIo ...) OBLIQUE SHINGLE, SAB Application filed September 17, 1921. Serial No. 501443. Heretofore…