Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Business
Class Information
Number: 434/357
Name: Education and demonstration > Question or problem eliciting response > Grading of response form > Comparison of response form with standard answer form > Means sensing aperture representing response
Description: Subject matter including means for detecting an aperture made in a means (e.g., a sheet, etc.) by an examinee to indicate his response.










Patents under this class:

Patent Number Title Of Patent Date Issued
6865369 Receptacle and plug connectors Mar. 8, 2005
4458435 Removable material swatch display incorporating type matched fixed material swatches Jul. 10, 1984











 
 
  Recently Added Patents
Multi currency exchanges between participants
Methods and apparatus for power amplifier calibration
Fuser member having composite outer layer
Apoptosis inductor extracted from potato, potato foodstuff containing the inductor, and processed product thereof
Passive translational velocity measurement from optical information
Unsupervised document clustering using latent semantic density analysis
Device, system, and method for logging near field communications tag interactions
  Randomly Featured Patents
Therapeutic anti-cytomegalovirus compounds
Can opener
Torque confirmation socket system
Level shifter
Apparatus at a spinning room machine, especially a flat card, roller card, cleaner or the like, for processing, especially grinding and/or sharpening, a clothing
Methacrylic acid separation
Polymorphic forms of 5-[4-[2-[n-methyl-n-(2-pyridyl)amino[ethoxy]benzyl] thiazolidine-2,4-dione maleate and process for their preparation
Lighting system for compatible stereo viewer
Knee guard
Processes for manufacturing flexible printed wiring boards