Title:
COUNTING BALL CALCULATOR
Document Type and Number:
Japanese Patent JPS62220985
Kind Code:
A
Inventors:
OTSUKI KAZUMARU
Application Number:
JP6443486A
Publication Date:
September 29, 1987
Filing Date:
March 21, 1986
Export Citation:
Assignee:
OTSUKI KAZUMARU
International Classes:
G09B19/02; G06C1/00; (IPC1-7): G06C1/00; G09B19/02