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发明名称
Two sided manhole step
摘要
申请公布号
USD556917(S1)
申请公布日期
2007.12.04
申请号
US20070285595F
申请日期
2007.04.03
申请人
M.A. INDUSTRIES, INC.
发明人
PEACOCK BOBBIE DON;MCINVALE CHARLES
分类号
主分类号
代理机构
代理人
主权项
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