Geometrical instrument

The ornamental design for a geometrical instrument, as shown.

FIG. 1 is a top and right front perspective view of a geometrical instrument showing my new design;

FIG. 2 is a left side elevational view thereof;

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

FIG. 4 is a bottom plan view thereof.

Patent	Priority	Assignee	Title
D307442,	Jan 20 1987		Combined book mark and template
D398250,	Oct 20 1997	Crayola LLC	Ruler and drawing stencil
D398864,	Oct 20 1997	Crayola LLC	Ruler and drawing template
D398865,	Oct 20 1997	Crayola LLC	Protractor and drawing template
D529960,	Jul 15 2003		Faux painting marking tool
D637500,	Feb 26 2010	Autosales, Incorporated	Tool and gauge

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