Unified screw thread standards.
By: [Proceedings, joint session of the representatives of Canada, United Kingdom and United States of the unification of screw threads at the National Bureau of Standards, Washington, D.C., November 18, 1948]
Series: Its Circular 479
Publisher: U.S. Govt. Print. Off.
Published: 1949
Place of publication: Washington
Language: eng
Number of pages: 27
Subjects: Screw-threads, Standard.