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发明名称
IMPROVEMENTS IN PNEUMATIC IMPACT DEVICES
摘要
申请公布号
GB1220164(A)
申请公布日期
1971.01.20
申请号
GB19690022025
申请日期
1968.05.31
申请人
CHAMBERSBURG ENGINEERING COMPANY
发明人
分类号
B21J7/24;B30B15/16
主分类号
B21J7/24
代理机构
代理人
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