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发明名称
Evacuator
摘要
申请公布号
US1799590(A)
申请公布日期
1931.04.07
申请号
US19280245235
申请日期
1928.01.07
申请人
KARL KIEFER
发明人
KIEFER KARL
分类号
B67C3/16;B67C3/26
主分类号
B67C3/16
代理机构
代理人
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