The inventor's universal educator.
Subtitle: An educational cyclopaedia and guide for inventors, patentees, manufacturers, mechanics and all others connected directly or indirectly with patents.
By: Comp. by Fred G. Dieterich.
Publisher: F. G. Dieterich
Published: 1906
Place of publication: Washington, D.C
Language: eng
Number of pages: 136
Subjects: Patents; Mechanical movements