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发明名称
Automatic two-way brake for hoists
摘要
申请公布号
US1993744(A)
申请公布日期
1935.03.12
申请号
US19340728725
申请日期
1934.06.02
申请人
MORISON INCORPORATED
发明人
MORISON GEORGE SMITH
分类号
B66D5/00
主分类号
B66D5/00
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