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经营范围
发明名称
DREDGING MACHINE
摘要
申请公布号
US3521387(A)
申请公布日期
1970.07.21
申请号
USD3521387
申请日期
1969.04.04
申请人
NORBERT V. DEGELMAN
发明人
NORBERT V. DEGELMAN
分类号
E02F3/88;E02F3/92;(IPC1-7):E02F3/92;A01D45/08
主分类号
E02F3/88
代理机构
代理人
主权项
地址
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