Title:
Cargo handling rig
United States Patent 3286851


Inventors:
Spery, John R.
Application Number:
US40935664A
Publication Date:
11/22/1966
Filing Date:
11/06/1964
Assignee:
SUN SHIPBUILDING & DRY DOCK CO
Primary Class:
Other Classes:
212/242, 212/271
International Classes:
B66C23/60
View Patent Images:
US Patent References:
3236390Ship's cargo boom with pendulum purchase block fitting1966-02-22
3050286Pulley block1962-08-21
3042222Cargo boom1962-07-03
2960310Dual hook blocks1960-11-15
1765347Crane hoist1930-06-17
1436608Block and tackle apparatus1922-11-21
1165363N/A1915-12-21
Foreign References:
GB937115A1963-09-18