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Class Information
Number: 33/1LE
Name: Geometrical instruments > Miscellaneous > Line engaging
Description:










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8567079 Construction layout tool with line guide Oct. 29, 2013
8402671 Measuring assistance device Mar. 26, 2013
8291606 Guide tool and method for laying concrete block Oct. 23, 2012
8104188 Suspended-ceiling grid control lines and grid components holders Jan. 31, 2012
7913408 Chalk line device, hook therefor, and method Mar. 29, 2011
7913409 Chalk line marking system Mar. 29, 2011
7805849 Retractable line leveler for medical equipment Oct. 5, 2010
7779546 Self supporting string line tool Aug. 24, 2010
7707734 Hands free chalk line snapper May. 4, 2010
7690125 Construction layout tool Apr. 6, 2010
7669343 Adjustable gable end line puller Mar. 2, 2010
7624508 Masonry alignment device and method of using same Dec. 1, 2009
7594336 Line anchor Sep. 29, 2009
7513053 Chalk line anchoring device Apr. 7, 2009
7506448 Layout clip and method of use Mar. 24, 2009
7497023 Offset line alignment tool Mar. 3, 2009
7487595 Measuring arrangement to determine location of corners for a building foundation and a wooden base frame, and the use thereof Feb. 10, 2009
7469482 Lay out line Dec. 30, 2008
7409771 Self supporting string line reel-line block tool Aug. 12, 2008
7231722 Lay out line Jun. 19, 2007
7197832 String line box tool Apr. 3, 2007
6964109 String line box tool Nov. 15, 2005
6957499 Depthometer Oct. 25, 2005
6851199 Football measuring device and method Feb. 8, 2005
6842992 Building wall layout tool Jan. 18, 2005
6829836 Material dispensing apparatus with line level Dec. 14, 2004
6817107 Batter board apparatus Nov. 16, 2004
6678961 Combined chalk line and articulated level device Jan. 20, 2004
6581295 Material dispensing apparatus with line level Jun. 24, 2003
6578274 Construction layout block Jun. 17, 2003
6490803 Batter board Dec. 10, 2002
6470581 Dual chalk line marking device Oct. 29, 2002
6453574 Method for aligning a cassette pod to an overhead hoist transport system Sep. 24, 2002
6421926 Stringline guide system Jul. 23, 2002
6415518 Apparatus for laying out a building foundation Jul. 9, 2002
6412184 Masonry line block and corner pole Jul. 2, 2002
6374504 Rafter tool and method Apr. 23, 2002
6360445 String line weight Mar. 26, 2002
5659967 Line level Aug. 26, 1997
5621976 Grade stake line cap device Apr. 22, 1997
5361510 Picture frame hanging wire applicator tool Nov. 8, 1994
5357682 Cornerbead alignment apparatus Oct. 25, 1994
5245555 System for measuring vector coordinates Sep. 14, 1993
5207000 Method and apparatus useful for determining an angle between a virtual optical axis and a planar surface May. 4, 1993
5173004 Concrete pouring and leveling devices and method of using Dec. 22, 1992
5142787 Means and method for defining a layout Sep. 1, 1992
5138771 Three dimensional homologous surveying instrument Aug. 18, 1992
5022158 Wall marking layout device Jun. 11, 1991
4932134 Adjustable foundation locating device Jun. 12, 1990
4924579 Layout system for construction foundation placement May. 15, 1990

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