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经营范围
发明名称
Pneumatic device
摘要
申请公布号
US2246535(A)
申请公布日期
1941.06.24
申请号
US19370137888
申请日期
1937.04.19
申请人
PLAYFAIR CHARLES G
发明人
PLAYFAIR CHARLES G.
分类号
B24B23/04;B24B47/06;F01L23/00
主分类号
B24B23/04
代理机构
代理人
主权项
地址
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