Method for sonic earth boring by use of resonant wave pattern transmitted from ground surface,申请号US19580739313-传众专利搜索

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发明名称	Method for sonic earth boring by use of resonant wave pattern transmitted from ground surface
摘要
申请公布号	US2942849(A)	申请公布日期	1960.06.28
申请号	US19580739313	申请日期	1958.06.02
申请人	BODINE ALBERT G	发明人	BODINE ALBERT G.
分类号	E21B7/24	主分类号	E21B7/24
代理机构		代理人
主权项
地址

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