Geometric instrument and method of making same
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United States of America Patent
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-
Aug 22, 1989
Grant Date -
N/A
app pub date -
May 18, 1987
filing date -
May 23, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pair of compasses has legs articulated by a pivot pin. Each leg is of moulded plastics with a strengthening metal insert provided in each leg. Projecting circular parts of the inserts are overlapped and articulated together by the pin within a bow top.
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