Resources
Contact Us
Home
Browse by:
INVENTOR
PATENT HOLDER
PATENT NUMBER
DATE
Browse by Category:
Main
>
Business
Class Information
Number:
434/329
Name:
Education and demonstration
>
Question or problem eliciting response
>
Correctness of response indicated to examine by self-operating or examinee actuated means
> Involving fluid flow
Description:
Subject matter wherein the correctness of the examinee"s response is revealed by means involving movement of a fluid.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4354845
Identification structure for games and educational use and for other use
Oct. 19, 1982
Recently Added Patents
Sparse data compression
Apparatus for performing timer management regarding a system timer scheduler service, and associated method
Stack and folding-typed electrode assembly and method for preparation of the same
Apparatus and method of preventing signal delay in display device
Multiple secure elements in mobile electronic device with near field communication capability
Equipment to facilitate money transfers into bank accounts
Method of improving sensitivity and interference rejection in wireless receivers
Randomly Featured Patents
Toolbox rotary latch
Detecting a reverse rate indicator channel
USB hub, USB-compliant apparatus, and communication system
Mandevilla plant named `Lannebraska`
Device, method and program for detecting eye
Method and apparatus for baseband tracking of a PN code sequence in a spread spectrum receiver
Telephone base unit
Film lamination vehicles and methods
Cooking appliance
Spectacles
© 2006-2011. PatentGenius.com All Rights Reserved.
