Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2005-06-14
2005-06-14
Hofsass, Jeffery (Department: 2636)
Communications: electrical
Condition responsive indicating system
Specific condition
C073S865400, C473S218000, C473S270000
Reexamination Certificate
active
06906627
ABSTRACT:
A foot positioning training device with a mat having a transmitter and receiver to establish an electric eye. The electric eye is tied to an alarm that indicates when a batter has taken an improper stride while swinging the bat.
REFERENCES:
patent: 6261189 (2001-07-01), Saville et al.
patent: 6396041 (2002-05-01), Vock et al.
Hofsass Jeffery
Stone Jennifer
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