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发明名称
Device for preventing accumulation of frost on windshields
摘要
申请公布号
US1835833(A)
申请公布日期
1931.12.08
申请号
US19300435876
申请日期
1930.03.14
申请人
JOHN F. SCHELLHAAS
发明人
WILLIAMS JOSEPH
分类号
B60S1/02
主分类号
B60S1/02
代理机构
代理人
主权项
地址
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