Geometrical instruments – Straightedge type – Square and fixed straightedge
Reexamination Certificate
2006-05-30
2006-05-30
Fulton, Christopher W. (Department: 2859)
Geometrical instruments
Straightedge type
Square and fixed straightedge
C033S423000, C033S414000
Reexamination Certificate
active
07051446
ABSTRACT:
A construction layout and angle measurement tool includes opposite working sides having unique indicia for establishing angles from side edges or corners of building materials. When used with a reference line, and when attached to the workpiece, the tool allows site layout and evaluation by only one person. The tool may be mounted on vertical, horizontal, and inclined workpieces. Angles are determined and evaluated directly with the tool while avoiding mathematical computation.
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Armstrong Teasdale LLP
Courson Tania
Fulton Christopher W.
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