Checkerwork made of interlocking bricks of the same shape,申请号US19540447455-传众专利搜索

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发明名称	Checkerwork made of interlocking bricks of the same shape
摘要
申请公布号	US2711893(A)	申请公布日期	1955.06.28
申请号	US19540447455	申请日期	1954.08.03
申请人	WALTERS HARRY W	发明人	WALTERS HARRY W.
分类号	F27D1/04;F28D17/02	主分类号	F27D1/04
代理机构		代理人
主权项
地址

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