LandOfFree - US Patents - Listing for Geometrical instruments,Straightedge type

Geometrical instruments – Straightedge type – Square and pivoted straightedge

Protractor

Geometrical instruments – Straightedge type – Plural straightedges – relatively moveable

Protractor for calculating miter and bevel angles for...

Geometrical instruments – Straightedge type – Base attached

Protractor unit for drawing-board

Geometrical instruments – Straightedge type – Base attached

Protractor with a rotor

Geometrical instruments – Straightedge type – Plural straightedges – relatively moveable

Protractor with an auxiliary ruler

Geometrical instruments – Straightedge type – Cord type

Protractor-chalkline

Geometrical instruments – Straightedge type – Square and sliding nonpivotal straightedge

Push stick with slide-out ruler

Geometrical instruments – Straightedge type – Rules

Quilting-aid device and method

Geometrical instruments – Straightedge type – Wall guide and plumb

Quoin corner form used in bricklaying

Geometrical instruments – Straightedge type – Square and pivoted straightedge

Rafter angle measuring device

Geometrical instruments – Straightedge type – Plural nonadjustable straightedges forming nonright angles

Rafter cutting template and tape

Geometrical instruments – Straightedge type – Square and pivoted straightedge

Rafter layout tool

Geometrical instruments – Straightedge type – Multiplane angularly adjustable

Rafter measuring and positioning template and method

Geometrical instruments – Straightedge type – Plural straightedges nonadjustably fixed at right angles

Rafter tool and method

Geometrical instruments – Straightedge type – Plural straightedges – relatively moveable

Rafter tool and method

Geometrical instruments – Straightedge type – Base attached

Rail type universal parallel ruler device

Geometrical instruments – Straightedge type – Base attached

Rail type universal parallel ruler device

Geometrical instruments – Straightedge type – Rules

Rainbow ruler

Geometrical instruments – Straightedge type – Rules

Reference marking on construction materials