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发明名称
Heating and ventilating apparatus
摘要
申请公布号
US2237477(A)
申请公布日期
1941.04.08
申请号
US19380192922
申请日期
1938.02.28
申请人
BURD PISTON RING COMPANY
发明人
COLVIN ROBERT H.
分类号
B60H1/00;B60H3/06
主分类号
B60H1/00
代理机构
代理人
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地址
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