Safety control for extensible boom cranes
United States Patent 3265220
US Patent References:
/RE22525.html
- - RE22525


Inventors:
Knight, Sidney G.
Publication Date:
08/09/1966
View Patent Images:
Download PDF 3265220 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
DROTT MFG CORP
Primary Class:
212/278
Other Classes:
212/282
International Classes:
B66C23/90; B66C23/00
Foreign References:
DE959943C
DE1128959B