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发明名称
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摘要
申请公布号
US1941408(A)
申请公布日期
1933.12.26
申请号
US19320631055
申请日期
1932.08.30
申请人
UNITED MATTRESS MACHINERY COMPANY
发明人
MATHEWSON WILFRED B.
分类号
A47C31/02
主分类号
A47C31/02
代理机构
代理人
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