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发明名称
Toy gear
摘要
申请公布号
US2477441(A)
申请公布日期
1949.07.26
申请号
US19460704409
申请日期
1946.10.19
申请人
COLE LEONARD W
发明人
COLE LEONARD W.
分类号
A63H33/04;F16H35/02;F16H55/08;G09B25/02
主分类号
A63H33/04
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代理人
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