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Class Information
Number: 33/476
Name: Geometrical instruments > Straightedge type > Plural straightedges nonadjustably fixed at right angles (e.g., t-square, triangles, squares) > With special scale markings
Description: Subject matter provided with indicia pertaining to a specific type of a measurement desired.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8307564 Deck building assist tool Nov. 13, 2012
7958645 Universal framing square Jun. 14, 2011
7954249 E-Z riser stair guide Jun. 7, 2011
7627955 Stringer guide template Dec. 8, 2009
7481143 Alignment device Jan. 27, 2009
7124668 Alignment device Oct. 24, 2006
7096592 Method and apparatus for locating hole positions on an adjustable stair stringer Aug. 29, 2006
7073240 Duct joint layout tool Jul. 11, 2006
6920735 Block positioning tool Jul. 26, 2005
6868616 Builder's measuring and marking tool Mar. 22, 2005
6839977 Method and apparatus for locating hole positions on an adjustable stair stringer Jan. 11, 2005
6758016 Adjustable support for steps Jul. 6, 2004
6725559 Apparatus and methods for locating embroidery center marks on an article Apr. 27, 2004
6708417 Large panel sheathing square Mar. 23, 2004
6691422 Photographic cropping method and device Feb. 17, 2004
6688014 Builder's measuring and marking tool Feb. 10, 2004
6578278 Saddle protractor Jun. 17, 2003
6470582 Apparatus and method of drawing a line perpendicular to a reference line Oct. 29, 2002
6415520 Apparatus and method for facilitating accurate placement and installation of crown molding Jul. 9, 2002
6408529 Multi-purpose framing square Jun. 25, 2002
6336274 Right angle graphing template Jan. 8, 2002
6308699 Paving brick template Oct. 30, 2001
6092297 Videocassette time measurement device Jul. 25, 2000
5901445 Method for making a builder's tool May. 11, 1999
5875557 Scale Mar. 2, 1999
5819422 Transparent measuring device and method of making Oct. 13, 1998
5778547 Electronic combination square Jul. 14, 1998
5727325 Multipurpose square Mar. 17, 1998
5519943 Apparatus and method for providing an octagonal shaped object May. 28, 1996
5497558 Multi-function drafting instrument Mar. 12, 1996
5456015 Construction framing square Oct. 10, 1995
5419054 Triangular drafting instrument May. 30, 1995
5353509 Multi-purpose T-square and level combination tool Oct. 11, 1994
5349758 Woodworking square having multiple uses Sep. 27, 1994
5309642 Mat marking and cutting apparatus May. 10, 1994
5269066 Carpenters level and square Dec. 14, 1993
5253426 Multi-purpose square Oct. 19, 1993
5239762 Layout tool Aug. 31, 1993
5212890 Access area measurement apparatus May. 25, 1993
5170570 Hand, finger and joint measuring gauge Dec. 15, 1992
5170568 Roofing speed square and method of use Dec. 15, 1992
5152122 Method for adjusting an inserting machine Oct. 6, 1992
5140755 Layout square Aug. 25, 1992
5090129 Carpenter square Feb. 25, 1992
4936020 Layout template for picture framing mat Jun. 26, 1990
4893414 Apparatus for measuring video cassette tape usage Jan. 16, 1990
4811489 Pipe fitters tape measure strip Mar. 14, 1989
4779346 Transparent measuring device with multicolored lines Oct. 25, 1988
4733477 Chalk line framing square Mar. 29, 1988
4644663 Measuring device Feb. 24, 1987

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