| Patents for B66C 3 - Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs (1,528) |
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| 11/29/1977 | US4059886 Hydraulic actuated grab bucket |
| 11/08/1977 | US4057278 Multi-shell grab bucket |
| 09/13/1977 | US4047313 Convertible grab bucket |
| 08/23/1977 | US4043580 Cable-controlled grab device |
| 08/16/1977 | US4042272 Hydraulic grab |
| 05/17/1977 | US4023848 Log grapple |
| 04/12/1977 | US4017114 Multidirectional grapple |
| 03/22/1977 | US4012856 Grab or grab bucket and method of operating same |
| 03/15/1977 | US4012069 Loading apparatus |
| 03/01/1977 | US4009643 Hydraulic motor for rotating the bucket of an excavating machine |
| 02/01/1977 | US4005895 Rotational grapple |
| 02/01/1977 | US4005894 Log grappling apparatus |
| 11/09/1976 | US3990688 Grapple skidder with self-centering grapple support mechanism |
| 10/12/1976 | US3985384 Hydraulic apparatus for grab device |
| 08/24/1976 | US3976322 Self-aligning grapple swivel |
| 08/17/1976 | US3975044 Reeving system for a scissor-type clamshell bucket |
| 08/17/1976 | US3974925 Loader and tree remover |
| 06/29/1976 | US3966249 Rotator |
| 06/29/1976 | US3965999 Drilling grab for pile foundations and well boreholes |
| 04/13/1976 | US3950022 Power hay fork |
| 04/13/1976 | US3949498 Grab bucket for dredging sludge |
| 03/30/1976 | US3946882 Grapple skidder with self-centering grapple support mechanism |
| 03/23/1976 | US3945137 Brake for cushioning pendulum movements, especially for grab buckets of hydraulically operable earth dredges |
| 02/17/1976 | US3938681 Grappling hayfork |
| 02/10/1976 | US3937302 Oscillating movement damping means intended for pivotally suspended hoisting gear |
| 02/03/1976 | US3936800 Pattern recognition system |
| 01/27/1976 | US3934917 Clamshell bucket apparatus |
| 01/20/1976 | US3933389 Grapple structure |