B43L 7/02

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9709398 Footer square apparatusesOct 10, 14Jul 18, 17Not available
9644373 Tool for facilitating the cutting of shinglesSep 18, 15May 09, 17Not available
9259958 T-squareAug 15, 13Feb 16, 16STANLEY BLACK & DECKER, INC.
7647705 T-square with finger guardNov 08, 07Jan 19, 10UNITED STATES GYPSUM COMPANY
7481001 Rolling T-square drywall cutterJun 14, 07Jan 27, 09Not available
7204031 Telescoping T-squareJul 22, 05Apr 17, 07Not available
6757983 Paver alignment and scribing guide tool and method of useApr 29, 03Jul 06, 04Not available
6578279 Paver alignment and scribing guide tool and method of useJun 09, 00Jun 17, 03Not available
5832618 Combination level and T-squareAug 01, 96Nov 10, 98IRWIN INDUSTRIAL TOOL COMPANY
5749153 Wallboard T-square with sharpenerSep 14, 95May 12, 98Not available
5459937 Mat board cutting guideAug 23, 94Oct 24, 95Not available
5353509 Multi-purpose T-square and level combination toolJul 27, 93Oct 11, 94Not available
5349758 Woodworking square having multiple usesOct 28, 92Sep 27, 94Not available
5245758 T-square attachment for carpenter's levelNov 16, 92Sep 21, 93Not available
5103570 Square relief deviceJan 30, 91Apr 14, 92Not available
4700491 Color-coded ruler for three-phase wiringFeb 12, 86Oct 20, 87Not available
4669197 Drawing aidNov 23, 84Jun 02, 87Not available
4279081 Wallboard T-squareOct 02, 79Jul 21, 81PHILLIPS MANUFACTURING CO.
4244119 Protractable straight-edge with viseMar 27, 79Jan 13, 81Not available