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James McLean is issued a patent for a piano.
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| Number | Title | Issue Date |
| 7399019 | Automatic adjustable spreader bar A device for lifting oversized pieces of material. The device includes a spreader bar capable of attaching to a lifting vehicle. At least two cross members are attached to the spreader bar along with at least one cross-member power source. The at least one cross-mem... | 07/15/2008 |
| 7353959 | Variable-speed load-dependent drive and hoist system In an embodiment, a crane including a hoisting (i.e., load-lifting) mechanism is provided with a variable-speed load-dependent control system and method for operating functions of the crane. An exemplary control system includes an actuator subsystem for performing a... | 04/08/2008 |
| 7344037 | Inventory storage and retrieval system and method with guidance for load-handling vehicle An inventory storage and retrieval system and method are provided for a shipping or storage facility. In an embodiment, the system includes: (a) a mobile computer and radio on a load-handing vehicle; (b) sensors on the vehicle to determine the ground location and or... | 03/18/2008 |
| 4544070 | Sway control arrangement for hoist systems An apparatus for controlling sway and pendulous motion of suspended loads is disclosed which is particularly suited for embodiment in association with a mobile crane or similar hoist system. The arrangement includes stabilizing cables attached to a load l... | 10/01/1985 |
