Resources Contact Us Home
Browse by Category: Main > Business
Class Information
Number: 434/210
Name: Education and demonstration > Mathematics > Arithmetic > Place value relative to decimal point
Description: Subject matter relating to the value of a number according to its position relative to a decimal point, e.g., a number located two places to the left of a decimal point represents units valued at 10 each.

Patents under this class:

Patent Number Title Of Patent Date Issued
8438744 Ruler and method of use May. 14, 2013
6729883 Numeric teaching device May. 4, 2004
5769639 Multi-educational device Jun. 23, 1998
5738524 Multi-function teaching game box Apr. 14, 1998
4856998 Teaching aids Aug. 15, 1989
4772208 Apparatus for use in teaching mathematics Sep. 20, 1988
4585419 Didactic aid for the teaching of any number system Apr. 29, 1986
4445865 Method of teaching mathematics May. 1, 1984
4372742 Arithmetical teaching aid Feb. 8, 1983
4331424 Math educational apparatus May. 25, 1982
4176474 Visual teaching aid for number concept Dec. 4, 1979
3995378 Mathematics visual teaching aid Dec. 7, 1976

  Recently Added Patents
Mobile communication device
Memory cell and memory cell array using the same
Crystal structure of human JAK3 kinase domain complex and binding pockets thereof
Electronic device
Method and system for constructing a customized web analytics application
Bulk vending apparatus, system and method
Agents for preventing and treating disorders involving modulation of the ryanodine receptors
  Randomly Featured Patents
Reverberation chamber tuner and shaft with electromagnetic radiation leakage device
Load fluctuation correction circuit, electronic device, testing device, and timing generating circuit
Apparatus for continuous untwisting and crimping of a cloth
Triazinylphosphonic acids and their use in self-extinguishing polymeric compositions
Method for policing-based adjustments to transmission window size
Shower enclosure system
Sealed orientation feature for a terminal
Abrasion resistant coating compositions and coated articles
Circuit board having a peripheral antenna apparatus with selectable antenna elements and selectable phase shifting
Nonaqueous electrolytic secondary battery and method of producing anode material thereof