Promissory note

Details Promissory note Promissory note

1987-04-07

1989-09-05

Trafton, David L.

Registers

Coded record sensors

Error checking

235456, 235494, 283 58, G06K 500

Patent

active

048641111

ABSTRACT:
A numerical instrument comprising a first location array defining a plurality of digit location for entry of numerals to define a number amount and a second location array in the form of a grid having rows corresponding to numbers and columns corresponding to digit locations, whereby the grid may be filled in to correspond to the number amount indicated in the first location array.

REFERENCES:
patent: 748766 (1904-01-01), Marshall
patent: 4300123 (1981-11-01), McMillin et al.
patent: 4667985 (1987-05-01), Leonard et al.

Affiliated with

Also associated with

Rating

Promissory note does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Promissory note, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Promissory note will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-244939