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发明名称
ESCAPE STAIRS OF EXTENDIBLE TYPE
摘要
申请公布号
JPS5251797(A)
申请公布日期
1977.04.25
申请号
JP19750125907
申请日期
1975.10.21
申请人
NAKA GIJIYUTSU KENKIYUUSHIYO KK
发明人
NAKA HIROMITSU
分类号
E04F11/04;A62B3/00;E04F11/06;E06C9/06;E06C9/08
主分类号
E04F11/04
代理机构
代理人
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地址
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