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摘要
申请公布号
US1958772(A)
申请公布日期
1934.05.15
申请号
US19320611286
申请日期
1932.05.14
申请人
STEWART KENNETH D
发明人
STEWART KENNETH D.
分类号
A47G1/21;A47L13/512
主分类号
A47G1/21
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