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发明名称
Dustguard
摘要
申请公布号
US1874382(A)
申请公布日期
1932.08.30
申请号
US19280275357
申请日期
1928.05.05
申请人
CONTINENTAL-DIAMOND FIBRE COMPANY
发明人
SWALLOW GERALD
分类号
B61F15/22
主分类号
B61F15/22
代理机构
代理人
主权项
地址
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