Languages
Ryffel, Henry H
Overview
| Works: | 2 works in 1 publications in 1 languages | |
|---|---|---|
Titles
Gear design simplified : a series of gear-designing charts illutrating by simple diagrams and examples the solutions of practical problems relating to spur gears, straight-tooth bevel gears
by:
Jones, Franklin Day; Ryffel, Henry H
(Language materials, printed)