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Class Information
Number: 33/486
Name: Geometrical instruments > Straightedge type > Rules > With attachment > Index
Description: Subject matter including an indicator or marker which may be adjusted on the straightedge to point out sequentially desired indicia.

Sub-classes under this class:

Class Number Class Name Patents
33/487 For subdividing 8
33/488 Optical (e.g., magnifying) 23

Patents under this class:

Patent Number Title Of Patent Date Issued
8677641 Artists relative measuring device Mar. 25, 2014
7891106 Growth chart device Feb. 22, 2011
7513056 Spirit level with sliding measurement system Apr. 7, 2009
6591511 Framing square Jul. 15, 2003
6430827 Spirit level Aug. 13, 2002
5960554 Stud layout template Oct. 5, 1999
5820183 Graduated tool handle Oct. 13, 1998
5189801 Speed guide Mar. 2, 1993
5083380 Duct notching template apparatus Jan. 28, 1992
4660295 Metric measuring device for postage stamps Apr. 28, 1987
4644663 Measuring device Feb. 24, 1987
4355472 Drafting aid Oct. 26, 1982
4291468 Mechanical point locator Sep. 29, 1981
3974568 Drivers log device Aug. 17, 1976

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