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发明名称
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摘要
申请公布号
US2352975(A)
申请公布日期
1944.07.04
申请号
US19430512439
申请日期
1943.12.01
申请人
ARTHUR ROE GRANT
发明人
ROE GRANT ARTHUR
分类号
A47G29/122
主分类号
A47G29/122
代理机构
代理人
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