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经营范围
发明名称
KEY WITH GUIDES AND MOVABLE STEPS
摘要
申请公布号
CA439701(A)
申请公布日期
1947.02.18
申请号
CAD439701
申请日期
申请人
AMERICO CIANI
发明人
AMERICO CIANI
分类号
主分类号
代理机构
代理人
主权项
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