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发明名称
Shovel head
摘要
申请公布号
US1805028(A)
申请公布日期
1931.05.12
申请号
US19260146604
申请日期
1926.11.06
申请人
ANTHONY COMPANY
发明人
ANTHONY WILLIAM C.;BENEDICT CHARLES H.;WACHTER LESTER
分类号
E02F3/50
主分类号
E02F3/50
代理机构
代理人
主权项
地址
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