DIRECT SIGHT DEVICE IN CUTTER CHAMBER OF SHIELDING MACHINE,申请号JP19870161142-传众专利搜索

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发明名称	DIRECT SIGHT DEVICE IN CUTTER CHAMBER OF SHIELDING MACHINE
摘要
申请公布号	JPS646499(A)	申请公布日期	1989.01.11
申请号	JP19870161142	申请日期	1987.06.30
申请人	KOMATSU LTD	发明人	YAMAZAKI TOSHIHIRO;GENDA MITSUHIRO
分类号	E21D9/08;G02B23/24	主分类号	E21D9/08
代理机构		代理人
主权项
地址

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