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发明名称
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摘要
申请公布号
US2485736(A)
申请公布日期
1949.10.25
申请号
US19450599806
申请日期
1945.06.16
申请人
MECHANICAL PRODUCTS, INC.
发明人
INGWERSEN RICHARD C.
分类号
H01H73/30
主分类号
H01H73/30
代理机构
代理人
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