Slide rule for navigation

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Description

FIG. 1 is a front perspective view of the slide rule showing my new design;

FIG. 2 is a rear perspective view of the slide rule of FIG. 1;

FIG. 3 is a left side perspective view of the slide rule of FIG. 1;

FIG. 4 is a right side perspective view of the slide rule of FIG. 1;

FIG. 5 is a top plan view of the slide rule of FIG. 1; and,

FIG. 6 is a bottom plan view of the slide rule of FIG. 1.

Referenced Cited
U.S. Patent Documents
D402906 December 22, 1998 Sullivan
2418207 April 1947 Tilbrook
4190960 March 4, 1980 Warner
4306141 December 15, 1981 Bailey et al.
4311903 January 19, 1982 Seely
4996776 March 5, 1991 Poirier
Patent History
Patent number: D422226
Type: Grant
Filed: Jun 17, 1998
Date of Patent: Apr 4, 2000
Inventor: Joseph Villeneuve (97170 Petit Bourg, Guadeloupe)
Primary Examiner: Antoine Duval Davis
Law Firm: Blank Rome Comisky & McCauley LLP
Application Number: 0/89,556
Classifications
Current U.S. Class: Angle Or Direction (7) (D10/65)
International Classification: 1004;