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发明名称
Guided coupling with retractable sleeve
摘要
申请公布号
US2917326(A)
申请公布日期
1959.12.15
申请号
US19540450674
申请日期
1954.08.18
申请人
WILLIAM LASAR
发明人
LASAR WILLIAM
分类号
B02C18/30
主分类号
B02C18/30
代理机构
代理人
主权项
地址
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