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经营范围
发明名称
LADDER STABILIZING DEVICE
摘要
申请公布号
US3568801(A)
申请公布日期
1971.03.09
申请号
USD3568801
申请日期
1969.02.28
申请人
H.D. WERNER CO. INC.
发明人
RICHARD L. WERNER
分类号
E06C7/48;(IPC1-7):E06C7/48
主分类号
E06C7/48
代理机构
代理人
主权项
地址
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