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USD232031S - Collision demonstration teaching aid - Google Patents

Collision demonstration teaching aid Download PDF

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Publication number
USD232031S
USD232031S US D232031 S USD232031 S US D232031S
Authority
US
United States
Prior art keywords
teaching aid
demonstration teaching
collision demonstration
collision
view
Prior art date
Application number
Inventor
Cited Welch Laboratory Apparatus
Original Assignee
Xerox Corporation
Filing date
Publication date

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Des. 232,031 Patented July 9, 1974 United States Patent O we COLLISION DEMONSTRATION TEACHING AID John Lawlor, Ta
ppan, N.Y., and John Sgombick, Ramsey, N.J., assignors to Xerox Corporation, Stamford, Conn.
Filed Nov. 22, 1972, Ser. No. 308,865
Term of patent 14 years Int. Cl. D19-07 U.S. Cl. D251 R Des 232,031
PAGE 2 FIG. 4
FIG. 1 is a perspective view of collision demonstration teaching aid;
FIG. FIG. FIG. FIG. FIG. FIG.
2 is a right side view;
3 is a bottom plan view; 4 is a top plan view;
5 is a left side view;
6 is a rear view; and
7 is a front view.
We claim: The ornamental design of collision demonstration teaching aid, substantially as shown.
References Cited Welch Laboratory Apparatus, cat, recd Oct. 25, 1965, p. 68, N0. 0708, collision in 2-D.
MELVIN B. FEIFER, Primary Examiner

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