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摘要
申请公布号
US3184548(A)
申请公布日期
1965.05.18
申请号
US19610110237
申请日期
1961.05.15
申请人
KRULWICH LESTER S
发明人
KRULWICH LESTER S.
分类号
H04M1/04;H04M1/21
主分类号
H04M1/04
代理机构
代理人
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