Flexible planar apparatus

Education and demonstration – Mathematics – Arithmetic

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

434188, 434191, G09B 1902

Patent

active

059973056

ABSTRACT:
A flexible planar apparatus fabricated from polyvinylchloride has a matrix of foldable lines defining a plurality of quadrilateral tiles. Said tiles are configured to convey information, such as a multiplication table using numerals or Braille characters. The foldable lines allow a first fold of the apparatus to be manually effected followed by a second substantially orthogonal fold of said apparatus, thereby uniquely identifying one of the tiles, which may represent the product of multiplicands in a times table.

REFERENCES:
patent: 1163125 (1915-12-01), Bechmann
patent: 2871581 (1959-02-01), Guzak
patent: 3009262 (1961-11-01), Moran
patent: 3487578 (1970-01-01), Sudermann
patent: 3628261 (1971-12-01), Thompson
patent: 3999310 (1976-12-01), Lufkin et al.
patent: 4445865 (1984-05-01), Sellon
patent: 4466799 (1984-08-01), Argio
patent: 4642086 (1987-02-01), Howarth
patent: 5098301 (1992-03-01), Woods
patent: 5207457 (1993-05-01), Haynes
patent: 5651628 (1997-07-01), Bankes

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Flexible planar apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-817397

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.