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发明名称
Dry chemical feeder
摘要
申请公布号
US2381802(A)
申请公布日期
1945.08.07
申请号
US19410416256
申请日期
1941.10.23
申请人
WALLACE & TIERNAN CO. INC.
发明人
BOOTH GEORGE MARTIN;BALLARD JOHN SCOTT
分类号
B01J8/00
主分类号
B01J8/00
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代理人
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