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发明名称
Vacuum loader and stacker
摘要
申请公布号
US1800385(A)
申请公布日期
1931.04.14
申请号
US19290403892
申请日期
1929.10.31
申请人
HAYES EDGAR S
发明人
HAYES EDGAR S.
分类号
B66C1/02
主分类号
B66C1/02
代理机构
代理人
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地址
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