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发明名称
Antifreeze appliance
摘要
申请公布号
US2471718(A)
申请公布日期
1949.05.31
申请号
US19480053917
申请日期
1948.10.11
申请人
BRECK LAWRENCE W
发明人
BRECK LAWRENCE W.
分类号
F25C1/24
主分类号
F25C1/24
代理机构
代理人
主权项
地址
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