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经营范围
发明名称
Improvements in or relating to fluid pressure operated engines, such as pneumatic picks or concrete breakers
摘要
申请公布号
GB618546(A)
申请公布日期
1949.02.23
申请号
GB19460029612
申请日期
1946.10.04
申请人
JOHN WILBUR TIERNEY;FRANK HILLS
发明人
分类号
B25D17/24
主分类号
B25D17/24
代理机构
代理人
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