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发明名称
Composite gem
摘要
申请公布号
US1745607(A)
申请公布日期
1930.02.04
申请号
US19280257781
申请日期
1928.02.28
申请人
FERDINAND D ESPOSITO
发明人
D'ESPOSITO FERDINAND
分类号
A44C17/00;C11B5/00
主分类号
A44C17/00
代理机构
代理人
主权项
地址
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