Educational game blocks,申请号US19460696185-传众专利搜索

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发明名称	Educational game blocks
摘要
申请公布号	US2491883(A)	申请公布日期	1949.12.20
申请号	US19460696185	申请日期	1946.09.11
申请人	AMERCO PRODUCTS INC.	发明人	WELCH LAWRENCE E.
分类号	A63F9/12	主分类号	A63F9/12
代理机构		代理人
主权项
地址

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