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发明名称
Ice boring device
摘要
申请公布号
US2666623(A)
申请公布日期
1954.01.19
申请号
US19500202116
申请日期
1950.12.21
申请人
PERCY N. ROSS
发明人
JOHNSON MELVIN C.
分类号
F25C5/04
主分类号
F25C5/04
代理机构
代理人
主权项
地址
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