Triangular drafting instrument
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 30, 1995
Grant Date -
N/A
app pub date -
Jan 6, 1993
filing date -
Jan 6, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flat triangular piece, usually of shatter resistant plastic, is formed with straight edges and is used in connection with a T-square for drawing perpendicular lines and geometric shapes. The outside peripheral corners are rounded for safety purposes and the intermediate portions of the legs are slotted or recessed to permit the utilitarian reproduction of triangular lines and shapes with sharp points.
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Cited Art Landscape
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