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发明名称
Alternating actuator for a pair of flexible cords
摘要
申请公布号
US2620534(A)
申请公布日期
1952.12.09
申请号
US19500156457
申请日期
1950.04.17
申请人
BERGER WILLIAM L
发明人
BERGER WILLIAM L.
分类号
A47H5/02
主分类号
A47H5/02
代理机构
代理人
主权项
地址
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