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发明名称
Grain car door opener
摘要
申请公布号
US2927770(A)
申请公布日期
1960.03.08
申请号
US19570668191
申请日期
1957.06.26
申请人
LINK-BELT COMPANY
发明人
ERICKSON WILLARD E.;MUSSCHOOT ALBERT;GRAYSON FRANK M.
分类号
B61J1/10
主分类号
B61J1/10
代理机构
代理人
主权项
地址
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