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摘要
申请公布号
US2297180(A)
申请公布日期
1942.09.29
申请号
US19410403403
申请日期
1941.07.21
申请人
ARTHUR WALSH EDWARD
发明人
WALSH EDWARD ARTHUR
分类号
B41J29/24
主分类号
B41J29/24
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