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发明名称
Hold away ladder attachments
摘要
申请公布号
US3146854(A)
申请公布日期
1964.09.01
申请号
US19620183241
申请日期
1962.03.28
申请人
CALVIN TERWILLIGER
发明人
TERWILLIGER CALVIN
分类号
E06C7/48
主分类号
E06C7/48
代理机构
代理人
主权项
地址
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