Teaching apparatus for correcting learning problems
Description
FIG. 1 is a perspective view from the right hand corner thereof of a teaching apparatus for correcting learning problems showing my new design;
FIG. 2 is a top view thereof;
FIG. 3 is a front view thereof as viewed along the lines --3-- of FIG. 4;
FIG. 4 is a left side view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a right side view thereof; and
FIG. 7 is a bottom view thereof.
Referenced Cited
U.S. Patent Documents
D194517 | February 1963 | Banks |
3662077 | May 1972 | Kersten |
4323349 | April 6, 1982 | Maltzman et al. |
Patent History
Patent number: D282935
Type: Grant
Filed: Jan 27, 1983
Date of Patent: Mar 11, 1986
Inventor: David C. Shifflett (Clinton Township, Lenawee County, MI)
Primary Examiner: Melvin B. Feifer
Law Firm: Krass & Young
Application Number: 6/461,347
Type: Grant
Filed: Jan 27, 1983
Date of Patent: Mar 11, 1986
Inventor: David C. Shifflett (Clinton Township, Lenawee County, MI)
Primary Examiner: Melvin B. Feifer
Law Firm: Krass & Young
Application Number: 6/461,347
Classifications
Current U.S. Class:
Sensory Feedback, E.g., Audio-visual Teaching Machine (D19/60)