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经营范围
发明名称
Lap counter
摘要
An automatic lap counting device for use by swimmers and runners, for example, which depends upon the change in the magnetic line of force of the North/South magnetic field for determining the laps.
申请公布号
US4530105(A)
申请公布日期
1985.07.16
申请号
US19820383973
申请日期
1982.06.01
申请人
RABINOWITZ, JONATHAN
发明人
RABINOWITZ, JONATHAN
分类号
A63B69/00;G01R33/038;G06M1/10;G06M3/06;G07C1/22;(IPC1-7):G06M3/06;G06M1/274
主分类号
A63B69/00
代理机构
代理人
主权项
地址
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