Pratt and Whitney Aircraft Company (East Hartford, Conn.), 1936-1937 Box 231, Folder 2879 Bookmark Abstract Or Scope Aircraft engines view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Pratt and Whitney Company (Hartford, Conn.), 1892-1950 Box 242, Folder 2958-2960 Bookmark Abstract Or Scope Gauges, machine tools, etc. view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Pratt, B. G., Company, undated Box 231, Folder 2872 Bookmark Abstract Or Scope "Scalecide" tree spray view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Pratt, Charles (New York, N.Y.), 1869- Box 231, Folder 2873 Bookmark Abstract Or Scope Oils, etc. view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Precision Equipment Company (Chicago, Ill.), undated Box 231, Folder 2880 Bookmark Abstract Or Scope Steel shelving view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Precision Scientific Company (Chicago, Ill.), 1938- Box 231, Folder 2881 Bookmark Abstract Or Scope Gas burners view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Prentice, James (New York, N.Y.), 1880- Box 231, Folder 2882 Bookmark Abstract Or Scope Civil engineering precision instruments view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Prescott, J. B., and Son (Webster, Mass.), 1894- Box 231, Folder 2883 Bookmark Abstract Or Scope Steel wall ties view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Pressed Steel Car Company (Pittsburgh, Pa.), 1899- Box 231, Folder 2884 Bookmark Abstract Or Scope Steel train cars view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P
Price, Theodore H., and Company (New York, N.Y.), 1910- Box 231, Folder 2885 Bookmark Abstract Or Scope Cotton picker view more view less Collection Context Yale University -Beinecke Rare Book and Manuscript Library Trade catalogs collection., 1800-1978P