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发明名称
Inspection port for screw conveyer connections
摘要
申请公布号
US2260812(A)
申请公布日期
1941.10.28
申请号
US19410384102
申请日期
1941.03.19
申请人
SCREW CONVEYOR CORPORATION
发明人
KOZAK JOSEPH L.
分类号
B65G33/00
主分类号
B65G33/00
代理机构
代理人
主权项
地址
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