Rock Crushers Inventions

By S I Fishgal

In 1979, S.I. Fishgal made his rock crushers inventions for, but did not assign to Joy Manufacturing Co. (Pittsburgh, PA). The crushers were transmission, fluid-driven and impact ones as follows:... This description may be from another edition of this product.

• Format: Paperback
• Language: English
• ISBN: 148013693X
• ISBN13: 9781480136939
• Release Date: October 2012
• Publisher: Createspace Independent Publishing Platform
• Length: 90 Pages
• Weight: 0.51 lbs.
• Dimensions: 0.2" x 8.5" x 11.0"