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发明名称
Improvements in Lowering Devices Comprising Brake Means for Resisting the Rotation of Rope Drums.
摘要
申请公布号
GB1186157(A)
申请公布日期
1970.04.02
申请号
GB19690009761
申请日期
1969.02.24
申请人
JALMARI SELIM VIRKKI
发明人
JALMARI SELIM VIRKKI
分类号
B66B9/04;A62B1/12;B66B9/00;B66D5/02
主分类号
B66B9/04
代理机构
代理人
主权项
地址
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