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经营范围
发明名称
Air exhauster
摘要
申请公布号
US1861817(A)
申请公布日期
1932.06.07
申请号
US19300455618
申请日期
1930.05.26
申请人
ROCKWOOD SPRINKLER COMPANY OF MASSACHUSETTS
发明人
ROCKWOOD GEORGE I.;CARLSON HJALMAR G.
分类号
A62C35/64
主分类号
A62C35/64
代理机构
代理人
主权项
地址
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