"National" Pipe Standards, Containing Tables and Useful Information Pertaining to Tubular Goods as Manufactured by National Tube Company.

National Tube

"National-Shelby" Seamless Tube Standards

National Tube Company.

Pocket Companion, Containing Telegraphic Code, Tables of Standard Dimensions of Wrought Iron Pipe, Tubes, &c. as Manufactured by the National Tube Works Co. and Tables of Useful Information. 1891.

National Tube Works Co. (McKeesport, Pa.)

Proceedings of the Third National Conference on Tube Techniques

Livingston Pipe & Tube, Inc. v. National Labor Relations Board

Facts About Pipe. Issued by National Tube Works Co. Comp. by E.C. Converse.

Converse, Edmund Cogswell, 1849-

Turtle Tube

Kathy Arnold Cherry