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Title of patent family (most common patent title) |
Family members |
Filing year |
---|---|---|
lifting structure of tower crane, hydraulic system of lifting structure, and lifting met… 🛈 | 6 | 2011 |
pin shaft, mounting structure for pin shaft, and concrete pumping equipment | 3 | 2012 |
positioning method of balance weight positioning pin of crane and marking tool | 3 | 2012 |
material conveying machine, composite structure conveying pipe and manufacture method th… 🛈 | 3 | 2011 |
hydraulic system for controlling rotation of boom, control method thereof and concrete p… 🛈 | 3 | 2012 |
hinge pin, connecting structure of cantilever crane of engineering machinery and concret… 🛈 | 3 | 2012 |
pumping stroke control method of double-cylinder pump and pumping device | 3 | 2012 |
locomotive car, control system of back locomotive car part and vehicle speed control met… 🛈 | 3 | 2011 |
sweeper side suction mechanism and sweeper comprising same | 3 | 2013 |
expansion valve block | 3 | 2012 |