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发明名称
Pebble feeder
摘要
申请公布号
US2692702(A)
申请公布日期
1954.10.26
申请号
US19490132052
申请日期
1949.12.09
申请人
PHILLIPS PETROLEUM COMPANY
发明人
CHURCH J. FRANK
分类号
F28C3/14
主分类号
F28C3/14
代理机构
代理人
主权项
地址
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