Title:
Hoist
United States Patent 2621820
Inventors:
Eugene, O'sullivan
Application Number:
US4482048A
Publication Date:
12/16/1952
Filing Date:
08/18/1948
Assignee:
Eugene, O'sullivan
Primary Class:
Other Classes:
187/900
International Classes:
B66B9/187
View Patent Images:
US Patent References:
2500539Hoisting apparatus for elevator platforms1950-03-14
2483109Lifting device or elevator1949-09-27
2451359Rotary and sliding ball bearing1948-10-12
2419145Hoist1947-04-15
2410373Revolving crane accessory for fork trucks1946-10-29
1736102Portable crane1929-11-19
1291746N/A1919-01-21
1134707N/A1915-04-06
0854961N/A1907-05-28
0799079N/A1905-09-12
0797942N/A1905-08-22
Foreign References:
GB183905A1922-07-26
GB212861A1924-06-05