G01B 3/06

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9644933 Folding rule and method for measuring anglesFeb 04, 14May 09, 17Not available
9329012 Folding ruleMar 20, 13May 03, 16Neugärtner, Mario
9323349 Hand-writing pen and mobile terminalJun 09, 11Apr 26, 16ZTE CORPORATION
9207057 Device for height measurement having a headpieceSep 05, 11Dec 08, 15SECA AG
8782914 Segmented measuring assembly and method of useDec 02, 11Jul 22, 14Not available
8689456 Folding rule having a lighting elementFeb 08, 10Apr 08, 14Not available
8250774 System for mounting an object to a surfaceNov 24, 10Aug 28, 12ERGOTRON, INC.
7698828 Safety ruleSep 02, 08Apr 20, 10Not available
6415521 Fish measuring apparatusApr 05, 99Jul 09, 02IP Holdings, Inc.
6209213 Multi-purpose measuring toolJul 27, 98Apr 03, 01Not available
6145210 Accessorized collapsible multiscaleSep 04, 98Nov 14, 00Not available
5617644 Cigar measuring deviceMay 26, 95Apr 08, 97Not available
5509212 Folding and locking drafting aid apparatus and methodSep 12, 94Apr 23, 96PROMARX SPECIALTIES USA, INC.
4977684 Apparatus and method for measuring length with a tape and a ruleDec 27, 88Dec 18, 90Not available
4916822 Angle and distance measuring instrumentDec 01, 88Apr 17, 90Not available
4524527 Combination level system for a thin ruleSep 17, 82Jun 25, 85G. F. WILSON COMPANY, INC., A CORP. OF AL
4426790 Folding ruler accessoryJul 20, 81Jan 24, 84Not available
4203227 Telescopic straight edgeMay 19, 78May 20, 80Not available
4194295 Level and angle attachment for a carpenter's folding rulerAug 17, 78Mar 25, 80Not available