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发明名称
LIQUID SEAL DEVICE
摘要
申请公布号
CA636647(A)
申请公布日期
1962.02.20
申请号
CAD636647
申请日期
申请人
ROY E. BRYSON
发明人
ROY E. BRYSON
分类号
主分类号
代理机构
代理人
主权项
地址
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