Welding patent classification in the A. F. Davis Welding Library
Contributors: Ohio. State University, Columbus.
Series: Ohio.  State University, Columbus.  Engineering Experiment Station.  Bulletin,; no. 140; Ohio State University studies: Engineering series,; v. 19, no. 1; Ohio.  State University, Columbus.  Engineering series ;; v. 19, no. l.
Publisher: College of Engineering, the Ohio State University
Published: 1950
Place of publication: Columbus
Language: eng
Number of pages: 74
Subjects: Welding -- Patents.; Patents -- Classification.