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发明名称
Chain
摘要
申请公布号
US1795039(A)
申请公布日期
1931.03.03
申请号
US19300444454
申请日期
1930.04.15
申请人
GEMEX COMPANY
发明人
PRESTINARI EUGEN
分类号
A44C5/02
主分类号
A44C5/02
代理机构
代理人
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