H
Henry H. Ryffel
11 works on record
Works

Design of worm and spiral gears

Machinery's Handbook Guide

Machinery's Handbook + Calc Pro 2 Bundle

Machinery's Handbook + Digital Edition

Machinery's Handbook

Gear design simplified

Machinerys Handbook
Machinery's Handbook (with CD-Rom) (Machinery's Handbook (Large Print W/CD))
Machinery's Handbook (with CD-Rom) (Machinery's Handbook (Large Print W/CD))
Machinery's Handbook, CD-ROM Upgrade
Machinery's Handbook, CD-ROM Upgrade
Machinery's Handbook 29th Edition CD-ROM and Large Print Set
Machinery's Handbook 29th Edition CD-ROM and Large Print Set
Machinery's Handbook 29th Edition CD-ROM and Toolbox Set
Machinery's Handbook 29th Edition CD-ROM and Toolbox Set