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3851767
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Information
Patent Grant
3851767
References
Source
Patent Number
3,851,767
Date Filed
Not available
Date Issued
Tuesday, December 3, 1974
49 years ago
CPC
B66C9/14 - Trolley or crane travel drives
B66C23/72 - Counterweights or supports for balancing lifting couples
B66C2700/0385 - Cranes with trolleys movable along adjustable or slewable arms
B66C2700/0392 - Movement of the crane arm Coupling of the crane arm with the counterweights Safety devices for the movement of the arm
US Classifications
212 - Traversing hoists
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