DEVICE FOR INFORMATION INPUT Russian patent published in 1999 - IPC

Abstract RU 2131142 C1

FIELD: computer engineering, in particular, entering commands to personal computer. SUBSTANCE: device has keyboard, three decoders, light source, two light receivers, three regulated holders, board. EFFECT: simplified design, decreased number of members. 2 dwg

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RU 2 131 142 C1

Authors

Dates

1999-05-27—Published

1996-07-23—Filed