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发明名称
PNEUMATIC CLEANING DEVICE
摘要
申请公布号
CA541071(A)
申请公布日期
1957.05.21
申请号
CAD541071
申请日期
申请人
AKTIEBOLAGET ASBRINK AND CO.
发明人
JOHN A. RYDBERG
分类号
主分类号
代理机构
代理人
主权项
地址
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