The Sellers or Franklin Institute system of screw-threads
Subtitle: a correspondence growing out of an inquiry addressed to the Institute by the Society of German Engineers
Contributors: Verein Deutscher Ingenieure
Publisher: [s.n.]
Published: 1887
Place of publication: Philadelphia?
Language: eng
Number of pages: 16
Notes: Cover title.

"[Reprinted from the Journal of the Franklin Institute, April, 1887]"