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US 4,736,526 AGranted
Geometry template
OwnerEric Hsiainventor
Life of this patent
Estimating the term…
Abstract
Apparatus is disclosed in which a clear plastic template bears a combination of inscribed marks and aperatures adapted to cooperate with each other so as to enable a user to readily draw common geometric figures. The template further cooperates with an annexed arm which rotates with respect to the template to assist in drawing circles.
Claims10
In a template assembly for drawing geometric designs, the combination comprising:
- a thin, rectilinear transparent plate having a plurality of internal edges,
- a plurality of apertures defined by said edges to form multiple geometrical shapes, two of said shapes being a large and small circle respectively, one shape being an oval and one shape being a rectangle,
- an elongated arm attached to said plate at one end so as to pivot, and
- a plurality of varigated indicia distributed around the perimeter of said plate, around the edges of said large circle aperture and around said rectangle aperture to facilitate the drawing of geometric forms.
1 more element
Dependencies are inferred from the claim text.