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经营范围
发明名称
HEAT SEALING APPARATUS
摘要
申请公布号
CA775338(A)
申请公布日期
1968.01.09
申请号
CAD775338
申请日期
申请人
W.R. GRACE AND CO.
发明人
NORMAN J. LYSTER;CLARENCE M. CHAMBERS
分类号
主分类号
代理机构
代理人
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