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发明名称
Attachment for preventing buckling of coal conveyer troughs
摘要
申请公布号
US1903205(A)
申请公布日期
1933.03.28
申请号
US19310564906
申请日期
1931.09.24
申请人
JOHN VALKO
发明人
VALKO JOHN
分类号
B65G27/00
主分类号
B65G27/00
代理机构
代理人
主权项
地址
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