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发明名称
Portable hood
摘要
申请公布号
US2020184(A)
申请公布日期
1935.11.05
申请号
US19340724170
申请日期
1934.05.05
申请人
HODSON WALTER D;SIMMONS IRA J
发明人
HODSON WALTER D.;SIMMONS IRA J.
分类号
B22D7/10;B27N3/00;C21D1/84
主分类号
B22D7/10
代理机构
代理人
主权项
地址
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