| 8870001 |
Mobile counterweight equipment of crawler crane and the crane including the equipment |
Linrui Sun, Liangjian Li, Biwen Qiu, Hua Wan, Hui GUO |
2014-10-28 |
| 8511489 |
Mobile lift crane with variable position counterweight |
David J. Pech, Kenneth J. Porubcansky |
2013-08-20 |
| 7967158 |
Mobile lift crane with variable position counterweight |
David J. Pech, Kenneth J. Porubcansky, Alan E. Pleuss |
2011-06-28 |
| 5941401 |
Counterweight handling system for ring supported cranes |
Terry L. Petzold, Jeffery L. Dreger |
1999-08-24 |
| 5484069 |
Process for self-disassembling a crawler crane |
— |
1996-01-16 |
| 5199586 |
Quick-connect sectional boom members for cranes and the like |
David J. Pech, Wayne W. Beebe, Terry S. Casavant, Paul M. Pukita, Michael J. Wanek |
1993-04-06 |
| D272955 |
Mobile crane |
David C. Dowrick |
1984-03-06 |
| 4397396 |
Truck crane having an elongated main frame |
Christopher G. Kay |
1983-08-09 |
| 4394913 |
Crane having power operated outriggers and lock means therefor |
Stephan R. Epps |
1983-07-26 |