Educational aid

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Description

FIG. 1 is a front elevational view of an educational aid showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a back elevational view thereof.

Referenced Cited
Other references
  • kusan's Fun'n Earn Book, Mar. 1966, p. 8, bottom, "Big Lock".
Patent History
Patent number: D246374
Type: Grant
Filed: Feb 19, 1976
Date of Patent: Nov 15, 1977
Inventors: Dorothy L. Ratcliff (Indianapolis, IN), Ford Ratcliff, Jr. (Indianapolis, IN)
Primary Examiner: Melvin B. Feifer
Attorney: Harold R. Woodard
Application Number: 5/659,288
Classifications
Current U.S. Class: Movable Indicator Or Changeable Exhibitor (D19/64)
International Classification: D1907;