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摘要
申请公布号
US2402194(A)
申请公布日期
1946.06.18
申请号
US19440568916
申请日期
1944.12.19
申请人
LESTER WOLFE
发明人
WOLFE LESTER
分类号
G01C21/02
主分类号
G01C21/02
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