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发明名称
PACE MAKER FOR PRACTICE OF SWIMMING
摘要
申请公布号
JPH03143464(A)
申请公布日期
1991.06.19
申请号
JP19890284407
申请日期
1989.10.31
申请人
KOMATSU LTD
发明人
NAKAO KIYOHARU
分类号
A63B69/12;A63B71/06
主分类号
A63B69/12
代理机构
代理人
主权项
地址
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