Title:
TENNIS SCORE MEMORY
Document Type and Number:
Japanese Patent JP2005058715
Kind Code:
A
Abstract:
To provide a useful instrument, simply and lightly used, and assisting proper practice of rules of a match without a referee or a scorer.
Beads on an abacus are used to input data, and the score of a tennis can be recorded by the positions of the beads in each frame.
Inventors:
OGIWARA TOYOJI
Application Number:
JP2003330658A
Publication Date:
March 10, 2005
Filing Date:
August 19, 2003
Export Citation:
Assignee:
OGIWARA TOYOJI
International Classes:
A63B71/06; (IPC1-7): A63B71/06
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