The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 1979
Filed:
Oct. 14, 1977
Noriaki Iwao, Tokyo, JP;
Tomy Kogyo Co., Inc., Tokyo, JP;
Abstract
A teaching apparatus for use in teaching numerical concepts can be constructed so as to utilize first and second display members which are movably mounted within a housing so that each of the members is capable of being moved from a first position to a series of successive positions. The housing is constructed so that as the display members are so moved portions of them can be viewed from the exterior of the housing. An advancing structure is provided within the housing for concurrently moving the display members from their first positions to the successive positions. First and second return structures are provided for causing the return of the display members to their first locations after they have been moved to any of the successive positions. A part may be mounted on the housing and connected to the advancing structure so that each time the advancing structure is actuated the part is moved from and then back into an initial position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile