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Class Information
Number: 33/423
Name: Geometrical instruments > Straightedge type > Square and pivoted straightedge > With indicia for rafter cuts
Description: Subject matter wherein the device includes various markings or numerical tables specifically designed for use in solving roof cutting problems.

Patents under this class:

Patent Number Title Of Patent Date Issued
7513054 Construction layout and angle measurement tool Apr. 7, 2009
7478485 Obtuse angle range adjustable square and method Jan. 20, 2009
7437826 Adjustable framing tool for laying out hip and valley rafters Oct. 21, 2008
7299559 Construction layout and angle measurement tool Nov. 27, 2007
7269909 Rafter layout tool Sep. 18, 2007
7228636 Pivoting rafter square with multiple insignia Jun. 12, 2007
7165333 Template and method of fabricating rafters Jan. 23, 2007
7114264 Length adjustable rafter square Oct. 3, 2006
7051446 Construction layout and angle measurement tool May. 30, 2006
6725555 Pivoting rafter square Apr. 27, 2004
6694635 Router template apparatus Feb. 24, 2004
6694633 Common rafter and hip layout tool Feb. 24, 2004
6293028 Construction tool and method of use Sep. 25, 2001
5634386 Wedge cutting jig device Jun. 3, 1997
5452522 Calibrated bevel square with integrated electronic level and plumb Sep. 26, 1995
5388340 Stair layout square with adjustable rake bar Feb. 14, 1995
4901444 Method and apparatus for guiding a saw relative to an angular cut of a board Feb. 20, 1990
4712307 Rafter angle measuring device Dec. 15, 1987

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