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发明名称
Mechanical spader
摘要
申请公布号
US1827429(A)
申请公布日期
1931.10.13
申请号
US19290367914
申请日期
1929.06.03
申请人
GLASIER HAROLD H
发明人
GLASIER HAROLD H.
分类号
A01B1/00;A01B1/06
主分类号
A01B1/00
代理机构
代理人
主权项
地址
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