Committee on Minimum Requirements of Instructions for Welding Operators in Trade Schools <br/><br/>
Code of minimum requirements for instruction of welding operators... 
Prepared by Committee on Minimum Requirements of Instructions for Welding Operators in Trade Schools... 
 - 1942 
 - New York, N.Y.,  American Welding Society,  c1942- 
 - iv, 83 P, :  illus., tables (1 fold.) diagrs.  23 cm. 
<br/><br/>pt.A. Arc welding of steel 3/16 to 3/4 in. thick (tentative) 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE<br/>Welding
<br/><br/><label>Dewey Class. No.: </label>671.521  / COP