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经营范围
发明名称
SEALING UNIT
摘要
申请公布号
CA496388(A)
申请公布日期
1953.09.22
申请号
CAD496388
申请日期
申请人
THE VISCOSEAL CORPORATION
发明人
DOUGLAS R. LEWIS
分类号
主分类号
代理机构
代理人
主权项
地址
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