Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles
Patent
1990-12-10
1992-02-25
Cuchlinski, Jr., William A.
Geometrical instruments
Straightedge type
Plural straightedges nonadjustably fixed at right angles
33474, 33476, 33562, B43L 7027
Patent
active
050901290
ABSTRACT:
A carpenter's square is disclosed which is capable of simplifying common woodworking layouts by means of various ports and a reference point used to appropriately orientate the square. The square can also advantageously be used as a dividing tool for longitudinally dividing a piece of wood.
REFERENCES:
patent: 266646 (1882-10-01), Rossman
patent: 1315333 (1919-09-01), Roads
patent: 1995204 (1935-03-01), Ford
patent: 2214408 (1940-09-01), Arizpe
patent: 2764818 (1956-10-01), Gard
patent: 4773163 (1988-09-01), Wolford, Jr.
Cuchlinski Jr. William A.
Fulton C. W.
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