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Class Information
Number: 33/425
Name: Geometrical instruments > Straightedge type > Square and pivoted straightedge > With protractor > And sliding straightedge
Description: Subject matter wherein a straightedge or a portion thereof can have a circular type of sweeping motion on the protractor.

Patents under this class:

Patent Number Title Of Patent Date Issued
6895675 Apparatus and methods for measuring the movement of a straightedge to draw lines or cut strips of a flat material May. 24, 2005
6694633 Common rafter and hip layout tool Feb. 24, 2004
6260283 Multi-functional carpentry tool Jul. 17, 2001
5915807 All-in-one drawing apparatus Jun. 29, 1999
5226238 Infinite square Jul. 13, 1993

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