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发明名称
Mechanism for digging trenches
摘要
申请公布号
US2360334(A)
申请公布日期
1944.10.17
申请号
US19410421452
申请日期
1941.12.03
申请人
ELIZABETH PRODUCTS CORPORATION
发明人
ENGEL FRANK A.;MANNING DENNIS J.
分类号
E02F3/06;E02F5/02
主分类号
E02F3/06
代理机构
代理人
主权项
地址
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