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发明名称
FOOT LADDER ACTUATED SAFETY MEANS
摘要
申请公布号
CA656197(A)
申请公布日期
1963.01.22
申请号
CAD656197
申请日期
申请人
JOHN E. MAGEE
发明人
JOHN E. MAGEE
分类号
主分类号
代理机构
代理人
主权项
地址
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