Improvements in or relating to percussion devices, particularly for ramming and tamping, operated by direct acting internal combustion engines,申请号GB19470021366-传众专利搜索

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发明名称	Improvements in or relating to percussion devices, particularly for ramming and tamping, operated by direct acting internal combustion engines
摘要
申请公布号	GB646987(A)	申请公布日期	1950.12.06
申请号	GB19470021366	申请日期	1947.08.06
申请人	FRANCIS NORWOOD BARD	发明人
分类号	E02D3/061	主分类号	E02D3/061
代理机构		代理人
主权项
地址

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