LandOfFree - US Patents - Listing for Education and demonstration,Audio recording and visual means

Education and demonstration – Audio recording and visual means

Sound belt for diapers

Education and demonstration – Audio recording and visual means – Visual information in book form

Sound illustrated book having page indicator circuit

Education and demonstration – Audio recording and visual means

Sound recording

Education and demonstration – Audio recording and visual means – Visual information in book form

Sound-illustrated, bound book

Education and demonstration – Audio recording and visual means – Visual information in book form

Sound-producing amusement or educational devices

Education and demonstration – Audio recording and visual means

Stereoscopic filmstrip teaching machine

Education and demonstration – Audio recording and visual means – Visual information in book form

Synchronized combined sound and sight entertainment and educatio

Education and demonstration – Audio recording and visual means – Common carrier for visual means and audio recording

Synchronized teaching mobile

Education and demonstration – Audio recording and visual means

System and method for distribution of child care training...

Education and demonstration – Audio recording and visual means – Visual information in book form

System and method for teaching a new language

Education and demonstration – Audio recording and visual means – Visual information in book form

System for enhancing books with special paper

Education and demonstration – Audio recording and visual means – Common carrier for visual means and audio recording

System for initialization of an image holder that stores images