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发明名称
Spade
摘要
申请公布号
US3064500(A)
申请公布日期
1962.11.20
申请号
US19600052999
申请日期
1960.08.30
申请人
AUGUST DUPPENGIESSER KARL
发明人
DUPPENGIESSER KARL AUGUST
分类号
A01B1/02
主分类号
A01B1/02
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