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发明名称
ARTIFICIAL SLOPE FOR SKIING
摘要
申请公布号
JPH02218381(A)
申请公布日期
1990.08.31
申请号
JP19890039719
申请日期
1989.02.20
申请人
NAGAHISA KOICHI
发明人
NAGAHISA KOICHI
分类号
A63B69/18;A63C11/22;A63C19/10
主分类号
A63B69/18
代理机构
代理人
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地址
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