Building block construction,申请号US19360073617-传众专利搜索

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发明名称	Building block construction
摘要
申请公布号	US2161680(A)	申请公布日期	1939.06.06
申请号	US19360073617	申请日期	1936.04.10
申请人	LELAND MYER JAY	发明人	MYER JAY LELAND
分类号	E04B2/52;E04C1/39	主分类号	E04B2/52
代理机构		代理人
主权项
地址

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