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经营范围
发明名称
Improvements in pipes having a bent portion for transporting powder or grains by air power
摘要
申请公布号
GB1110273(A)
申请公布日期
1968.04.18
申请号
GB19650025834
申请日期
1965.06.18
申请人
SHOZO OKA
发明人
分类号
B65G53/52
主分类号
B65G53/52
代理机构
代理人
主权项
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