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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

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