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发明名称
摘要
申请公布号
SU557961(A1)
申请公布日期
1977.05.15
申请号
SU19731937515
申请日期
1973.07.02
申请人
发明人
分类号
B65G19/00;E21F13/08;G01M13/00;G01M17/00;(IPC1-7):B65G19/00
主分类号
B65G19/00
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