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        "http://www.w3.org/ns/prov#value" : [ "20110123143RETAINER FOR ROLLER BEARING - The present invention relates to a retainer for a roller bearing having any one or more of ring-like upper and lower rims and a plurality of bars connected at their ends to any one or more of the upper and lower rims in such a manner as to be circumferentially spaced apart from each other, the retainer including a chamfered face portion formed on each edge" ] ,
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