Title:
KNOCK-DOWN HOIST
United States Patent 3521860


Inventors:
Zehrung Jr., Claude D.
Kruger, Carl H.
Application Number:
US3521860DA
Publication Date:
07/28/1970
Filing Date:
03/18/1968
Assignee:
RENTAL EQUIPMENT MFG CORP
Primary Class:
Other Classes:
5/86.1, 212/175, 254/124
International Classes:
B66C23/48; (IPC1-7): B60P1/48
View Patent Images:
US Patent References:
3222029Invalid lift1965-12-07
3154290Trailer-type hydraulic lift1964-10-27
3104399Invalid lifts1963-09-24
3081064Crane attachment for bumper jacks1963-03-12
2842271Hoist1958-07-08
2706120Floor crane with adjustable legs1955-04-12
2528329Apparatus for removing power units from automotive vehicles1950-10-31
1974463Portable derrick1934-09-25