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发明名称
Ultrasonic cell
摘要
申请公布号
US2366822(A)
申请公布日期
1945.01.09
申请号
US19420467651
申请日期
1942.12.02
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
WILLARD GERALD W.
分类号
G02F1/11
主分类号
G02F1/11
代理机构
代理人
主权项
地址
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