| Patents for B43L 7 - Straightedges (3,964) |
|---|
| 03/05/2003 | EP1069994A4 Layout tool for laying out perpendicular lines |
| 03/05/2003 | CN2538558Y Multifunctional combined ruler |
| 03/05/2003 | CN2538557Y 多功能尺 Multifunction foot |
| 02/04/2003 | US6513257 Method and apparatus for determining scale in photographic images |
| 01/15/2003 | CN2530815Y Multifunctional pattern ruler |
| 01/01/2003 | CN2528640Y Symmetric limb |
| 01/01/2003 | CN2528639Y Multifunctional drawing appliance with ruler |
| 01/01/2003 | CN2528637Y Multifunction ruler |
| 12/11/2002 | CN2524950Y New telescopic fixing ruler |
| 11/14/2002 | US20020166250 Straight edge to facilitate holding and measuring and to provide protection when cutting |
| 10/30/2002 | CN2518702Y Telescoping check ruler |
| 10/22/2002 | US6467179 Measuring and drafting tool |
| 10/17/2002 | US20020149198 Business card and ruler combination |
| 10/09/2002 | CN2515037Y Triangle with ruler |
| 10/02/2002 | CN2513784Y Telescopic ruler with positioning holding function |
| 09/25/2002 | CN2512623Y Letter and lattice two purpose rule |
| 09/11/2002 | CN2510309Y Multipurpose ruler for geometry teaching |
| 09/06/2002 | WO2002068214A1 Modified square |
| 09/03/2002 | US6442856 Extendable tool for use marking angular lines |
| 08/29/2002 | US20020116834 Modified square |
| 08/28/2002 | CN2507661Y Ruler |
| 08/28/2002 | CN2507660Y Drawing device |
| 08/20/2002 | US6434844 See-thru engineering instrument |
| 08/08/2002 | US20020104225 Drawing tool |
| 07/31/2002 | CN2502912Y Multifunctional T-square |
| 07/25/2002 | WO2002057041A2 A hacksaw frame |
| 07/24/2002 | CN2501697Y Multifunctional rule |
| 07/17/2002 | CN1358631A Multi-functional drawing rule for teaching |
| 06/27/2002 | US20020078581 Method and apparatus for determining scale in photographic images |
| 06/12/2002 | EP1212203A2 Parallel rule |
| 06/05/2002 | CN2494274Y Ink absorption ruler |
| 05/22/2002 | CN2492399Y Multipurpose rule |
| 05/15/2002 | CN2491251Y Environmental protection eraser |
| 05/08/2002 | CN2489981Y Right-angle ruler |
| 05/01/2002 | CN2488702Y Roler for drawing balanced line |
| 04/24/2002 | CN2487564Y Multifunctional compasses |
| 04/18/2002 | DE10118515A1 Folding telescopic marking device used for marking ceilings and high walls comprises a measuring rail fixed to a pivoting head on the upper end of a telescopic rod |
| 04/17/2002 | CN2486348Y Multipurpose ruler |
| 04/17/2002 | CN2486345Y Straight ruler with compasses |
| 04/10/2002 | CN2485151Y Assembled ruler |
| 03/27/2002 | CN2483199Y Multi-functional ruller with measuring scales |
| 03/27/2002 | CN2483198Y Multi-functional roller |
| 03/20/2002 | CN2482501Y Electrochemical aluminium rule |
| 03/06/2002 | CN2480165Y Magnetic steel rule |
| 02/28/2002 | WO2002016148A1 Measuring device |
| 02/26/2002 | US6349478 Window measuring device |
| 02/20/2002 | CN2477394Y Multifunctional ruler |
| 01/23/2002 | CN2472960Y Multifunction check rule |
| 01/23/2002 | CN2472959Y Vernier calculation rule |
| 01/16/2002 | CN2471553Y 多功能格尺 Multifunctional ruler |
| 01/08/2002 | US6336274 Right angle graphing template |
| 01/02/2002 | CN2468750Y Combination of pen and ruler |
| 01/01/2002 | US6334261 Collapsible square |
| 12/20/2001 | US20010052189 Radius tools |
| 11/20/2001 | US6317993 Pipe flange square and method |
| 11/13/2001 | US6314653 Ruler device |
| 11/06/2001 | US6311408 Multi-scale position locator and method for locating a position |
| 10/18/2001 | WO2001076889A1 Extendable tool for marking angular lines |
| 10/17/2001 | CN2454148Y Multi-purpose drawing ruler and gauge |
| 10/11/2001 | WO2001015913A3 Parallel rule |
| 10/10/2001 | CN2452749Y Children measuring ruler with interesting luminous effect |
| 09/19/2001 | CN2448572Y Rule |
| 09/18/2001 | US6289594 Drywall marking and scoring guide |
| 09/13/2001 | US20010020334 Drywall marking and scoring guide |
| 08/29/2001 | CN2444782Y 磁性尺 Magnetic foot |
| 08/22/2001 | CN1069866C Multifunctional function scale |
| 08/21/2001 | US6276070 Quilting tool |
| 08/14/2001 | US6272758 Steel worker's layout tool |
| 08/08/2001 | CN2441654Y Blackboard eraser with dismantling rule rod |
| 08/08/2001 | CN2441651Y Multifunction mapper |
| 08/08/2001 | CN2441650Y High edge easy taking straight scale |
| 07/17/2001 | US6260283 Multi-functional carpentry tool |
| 06/12/2001 | US6243958 Illuminated evidence marker |
| 05/30/2001 | CN2432053Y Square drawing device |
| 05/29/2001 | US6237238 Angle measurement tool |
| 05/15/2001 | US6230416 Laser square |
| 05/09/2001 | CN2429874Y Writing training device |
| 04/18/2001 | CN2426800Y Anti-turningover ruler for book pages |
| 04/04/2001 | CN2426131Y Intelligent active rule |
| 03/21/2001 | CN2424024Y Ruler |
| 03/21/2001 | CN2424023Y Anti-skid easy-to-take ruler |
| 03/21/2001 | CN2424022Y Novel combination rule |
| 03/21/2001 | CN1063394C Method for mfg. tape made of glass fiber with high stretching resistance |
| 03/14/2001 | CN2423112Y Convenient ruler |
| 03/08/2001 | WO2001015913A2 Parallel rule |
| 02/14/2001 | CN2419052Y Straight ruler |
| 01/24/2001 | EP1069994A1 Layout tool for laying out perpendicular lines |
| 01/17/2001 | CN2414921Y Multifunctional triangle |
| 01/03/2001 | CN2412755Y Multi-purpose teaching ruler |
| 12/27/2000 | CN2412261Y Mathematical combined teaching aid for upperclassman in middle school |
| 12/12/2000 | US6158135 See-thru engineering instrument |
| 11/21/2000 | US6148531 Tool for setting and determining angles |
| 11/14/2000 | US6145210 Accessorized collapsible multiscale |
| 11/07/2000 | US6141882 Measuring instrument |
| 11/01/2000 | CN2403586Y Combine of ruler and drawing equipment |
| 11/01/2000 | CN2403585Y 磁性直尺 Magnetic ruler |
| 10/24/2000 | US6134796 Aircraft navigational plotter |
| 09/27/2000 | CN2398103Y Multipurpose ruler |
| 09/13/2000 | CN2395902Y Multifunctional ruler for student |
| 07/26/2000 | EP1022156A1 Dimensions converting instrument |