G09B3/04 - CPC Classification Index

ClassID:

195213 ⎘

G09B3/04 - CPC Classification

Classification description:

Manually or mechanically operated teaching appliances working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student of chart form

Sub-classes:

G09B3/045 » {with invisibly printed correct answer; the answer being rendered visible by special optical means, e.g. filters; mirrors} 2

Recent Application in this class:

20250046204

METHOD FOR SUPPORTING SELF-DIRECTED LEARNING BY STUDENT

20230368685

Apparatus and Method for Recursive Use of Articles in Performance of Activities

20120107786

METHOD OF CREATING A FOUNDATIONAL INSTRUCTIONAL DESIGN MODEL FOR SHAREABLE CONTENT OBJECTS

20100112539

SELF-SCORING AND SELF-ANALYZING TEST ANSWER SHEET

20070272753

Method of scoring a printed form having targets to be marked

20060035203

Self-scoring and self-analyzing test answer sheet

20060035202

Activity book