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发明名称
LADDER LEVELLING MAT
摘要
申请公布号
GB8816599(D0)
申请公布日期
1988.08.17
申请号
GB19880016599
申请日期
1988.07.13
申请人
CLARKE, J B
发明人
分类号
E06C1/00;E06C1/14;E06C7/44
主分类号
E06C1/00
代理机构
代理人
主权项
地址
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