156с

1942г

" ,. I 1-blfl 3K3. |

37 AIRCRAFT "23 TORCH WELDING

BY

C. VON BORCHERS

Welding Process Engineer, Kellett Autogiro Corp. Philadelphia, Pennsylvania

Instructor Aircraft Welding for National Defense

and

A. CIFFRIN, D.Sc. M.S., D.I.C.(Lond.), M.I.Ae.S.

PITMAN PUBLISHING CORPORATION

NEW YORK CHICAGO