Graphic comparison of screw thread pitches : showing the number of threads per inch and pitch in millimeters for both inch and millimeter systems / Department of Commerce, Bureau of Standards.
- Physical Description: 1 online resource (1 page) : illustration.
- Publisher: [Washington, D.C.] : Department of Commerce, Bureau of Standards, 1922.
|General Note:|| Title from caption (viewed June 17, 2016).
"April 18, 1922."
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- Miscellaneous publications ; no. 49
- Miscellaneous publications (United States. Bureau of Standards) ; no. 49.