Title:
Automatic machine for hardening gears
United States Patent 1948480
Inventors:
Heinrich, Schicht
Publication Date:
02/20/1934
Export Citation:
Click for automatic bibliography generation
Assignee:
Firm, Ferd Klingelnberg Sohne W.
Primary Class:
266/78
Other Classes:
134/56R, 134/169R, 266/118
International Classes:
C21D9/32; C21D9/32
View Patent Images:
Download PDF 1948480        PDF help