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发明名称
Jewel bearing for watches and the like
摘要
申请公布号
US1976181(A)
申请公布日期
1934.10.09
申请号
US19330656579
申请日期
1933.02.13
申请人
FRITZ MARTI
发明人
MARTI FRITZ
分类号
G04B31/04
主分类号
G04B31/04
代理机构
代理人
主权项
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