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发明名称
Air-porous paper and process of making same
摘要
申请公布号
US1854427(A)
申请公布日期
1932.04.19
申请号
US19300471600
申请日期
1930.07.29
申请人
AIR-WAY ELECTRIC APPLIANCE CORPORATION
发明人
JR. FREDERICK RIEBEL,
分类号
D21F11/14
主分类号
D21F11/14
代理机构
代理人
主权项
地址
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