Kehl, Robert J. b. 1889 Oxy-acetylene Welding Practice; a Practical Presentation of the Modern Processes of Welding, Cutting, and Lead Burning, With Special Attention to ... Steel, Cast Iron, Aluminum, Copper and Brass

Oxy-acetylene Welding Practice; a Practical Presentation of the Modern Processes of Welding, Cutting, and Lead Burning, With Special Attention to ... Steel, Cast Iron, Aluminum, Copper and Brass