Geometrical instruments – Straightedge type
Patent
1993-03-29
1993-12-21
Cuchlinski, Jr., William A.
Geometrical instruments
Straightedge type
33430, 33456, 33495, B43L 700
Patent
active
052711595
ABSTRACT:
A mitering guide device for a circular saw has a protractor including a curved edge with angle markings thereon. An arm is pivotally attached to the protractor and performs in conjunction with a saw guide for defining an angle to be cut. A hinge is attached to the protractor and saw guide through multiple hinge joints for permitting various thicknesses of boards to be cut.
REFERENCES:
patent: 2719548 (1955-10-01), Mitchell
patent: 4901444 (1990-02-01), Maschmeier
patent: 5148730 (1992-09-01), McCaw
Chen Andy H. T.
Tsao Alan H. Y.
Cuchlinski Jr. William A.
Wirthlin Alvin
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