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发明名称
Automatic apparatus for feeding liquid or gaseous materials
摘要
申请公布号
US2469230(A)
申请公布日期
1949.05.03
申请号
US19450573415
申请日期
1945.01.18
申请人
PARDEE HARPER ESTER
发明人
HARPER ESTER PARDEE
分类号
C02F1/68;E03D1/32;G05D16/12
主分类号
C02F1/68
代理机构
代理人
主权项
地址
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