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发明名称
DUCT FOR PNEUMATIC CONVEYING
摘要
申请公布号
PL125164(B2)
申请公布日期
1983.04.30
申请号
PL19800227713
申请日期
1980.11.05
申请人
发明人
分类号
B64D1/18;B65G;B65G53/04;(IPC1-7):B64D1/18
主分类号
B64D1/18
代理机构
代理人
主权项
地址
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