Process of manufacturing prestressed concrete,申请号US19520275369-传众专利搜索

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发明名称	Process of manufacturing prestressed concrete
摘要
申请公布号	US2702424(A)	申请公布日期	1955.02.22
申请号	US19520275369	申请日期	1952.03.07
申请人	JOHANNES BAKKER	发明人	BAKKER JOHANNES
分类号	B28B23/04;E04C5/10	主分类号	B28B23/04
代理机构		代理人
主权项
地址

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