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Priority claimed from JP6124172Aexternal-prioritypatent/JPS5430176B2/ja
Priority claimed from JP12087372Uexternal-prioritypatent/JPS4974671U/ja
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Publication of NL7308314ApublicationCriticalpatent/NL7308314A/xx
B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs