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发明名称
Improvements in and relating to devices for preventing overloading of geared pulley hoists
摘要
申请公布号
GB573853(A)
申请公布日期
1945.12.10
申请号
GB19430017031
申请日期
1943.10.16
申请人
PER EMIL PERMAN
发明人
分类号
B66D3/16
主分类号
B66D3/16
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代理人
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