Toy building block,申请号US19370132196-传众专利搜索

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发明名称	Toy building block
摘要
申请公布号	US2147237(A)	申请公布日期	1939.02.14
申请号	US19370132196	申请日期	1937.03.22
申请人	EDWIN BLUTHARDT	发明人	BLUTHARDT EDWIN
分类号	A63H33/04	主分类号	A63H33/04
代理机构		代理人
主权项
地址

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