Drafting triangle

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Description

FIG. 1 is a top plan view of a drafting triangle showing my new design.

FIG. 2 is a bottom edge elevational view thereof.

FIG. 3 is a cross sectional view as taken from line 3--3 of FIG. 1.

FIG. 4 is a top perspective view thereof.

Referenced Cited
U.S. Patent Documents
D198392 June 1964 Thomas
D209232 November 1967 Charniga
697594 April 1902 Alteneder
3094784 June 1963 Van Dyke
Foreign Patent Documents
657,051 September 1951 UK
Patent History
Patent number: D242693
Type: Grant
Filed: Mar 10, 1975
Date of Patent: Dec 14, 1976
Inventor: Robert Vincent Kennedy (Cambridge, MA)
Primary Examiner: Nelson C. Holtje
Application Number: 5/550,788
Classifications
Current U.S. Class: Combined (D10/62)
International Classification: D1004;