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Multi-purpose apparatus for hydraulic excavators and cranes
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Device for mechanical shovels
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Device for mechanical shovels
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Universal excavator
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Device for hydraulic dredgers
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Excavator with automatic cycling
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Quick-loading excavator device
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Carrier vehicle for an excavator
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Double acting cylinder hydraulic rammer - can automatically vary stroke length to compensate for pressure variation
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Pile driving hammer with wide operating height adjustment - can have hammer shaft variably clamped on sliding frame
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Directional valve for control of working cylinder - has actuating pistons of smaller dia. than each of two valves
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Striker unit work cylinder fluid control - has control rod connecting cylinder valve to input and return conduits
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Hydraulic impact hammer with multiway valve - has automatic control system for maintaining constant operating pressure in cylinder
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Endless track tensioning system - has sprung drive sprocket and protector plate over lower run of chain
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Hydraulic pile driving hammer reversal movement control - has storage piston mechanically activating reversing valve in two settings
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Ram hammer with sound-absorbing jacket
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