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发明名称
CONCRETE STAIRCASES
摘要
申请公布号
GB2217359(B)
申请公布日期
1991.11.27
申请号
GB19880008717
申请日期
1988.04.13
申请人
* BISON LIMITED;* BISON FLOORS LIMITED;* BISON HOLDINGS LIMITED
发明人
WILLIAM ALBERT * FREEMAN;DEREK WILLIAM * HANKINSON;JAMES * HEPBURN
分类号
B28B7/22;B28B23/00;B28B23/04;E04C5/02;E04F11/116
主分类号
B28B7/22
代理机构
代理人
主权项
地址
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