| Patents for B43L 7 - Straightedges (3,964) |
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| 03/05/2015 | US20150059959 Assembly and method for taping walls for painting stripes and patterns |
| 02/24/2015 | US8960205 Method and system for imparting strand effect to hair |
| 02/19/2015 | US20150047214 T-square |
| 02/11/2015 | CN204149719U 直尺视窗读取器 Windows ruler reader |
| 02/05/2015 | US20150033568 Triangle ruler capable of measuring angles |
| 02/04/2015 | CN204136644U 一种旋转式丁字尺 A rotary T-square |
| 01/28/2015 | CN204123855U 一种野战测绘多功能三棱尺 One kind of field mapping versatile triangular ruler |
| 01/28/2015 | CN204123854U 一种能防止粘笔油且具有放大功能的格尺 One kind of oil to prevent sticking a pen and has a zoom function ruler |
| 01/28/2015 | CN104309369A 一种一体化数学测量工具 An integrated mathematical measurement tool |
| 01/28/2015 | CN104309368A 多功能直尺 Multifunctional ruler |
| 01/27/2015 | US8939918 Calibration and measurement system |
| 01/21/2015 | CN204109637U 一种可拆卸直尺 A disengageable ruler |
| 01/21/2015 | CN104290505A 一种可变宽度的尺子 A variable width ruler |
| 01/14/2015 | CN204095360U 一种多功能教学工具 A versatile teaching tool |
| 01/14/2015 | CN204095357U 一种会计专用尺 A form of accounting Rulers |
| 01/14/2015 | CN204095356U 一种作图工具 One kind of drawing tools |
| 01/14/2015 | CN204095355U 一种教学专用的多功能教尺 A teaching special education multifunction foot |
| 01/14/2015 | CN204095354U 多功能绘图尺 Multifunction drawing ruler |
| 01/14/2015 | CN104275969A 一种防墨水渗漏的直尺 An anti-ink leak ruler |
| 01/07/2015 | CN204077164U 一种新型数学教学专用多功能刻度直尺 A new mathematics teaching special multifunction scale ruler |
| 01/07/2015 | CN204077163U 多功能正三角板 Multifunction positive triangle |
| 12/31/2014 | CN204055068U 一种折叠式教学用直尺 Teaching with a folding ruler |
| 12/25/2014 | US20140373372 Pivoting Construction Square and Multipurpose Measuring Tool |
| 12/24/2014 | CN204037162U 一种木制尺 One kind of wooden ruler |
| 12/24/2014 | CN204037161U 一种教学尺子 A teaching ruler |
| 12/24/2014 | CN204037160U 一种新型折叠尺 A new folding ruler |
| 12/17/2014 | CN204020324U 多功能教学圆规 Multifunctional compasses |
| 12/17/2014 | CN204020323U 一种新型艺术设计专业用折叠式绘画尺 A new art and design professionals with a folding ruler painting |
| 12/17/2014 | CN204020322U 多功能英语学习用尺 Multifunction English learning with a ruler |
| 12/17/2014 | CN204020321U 一种多功能文具 A multifunctional stationery |
| 12/17/2014 | CN104210286A 多功能不锈钢尺 Multifunction stainless steel ruler |
| 12/10/2014 | CN203995340U 带圆规量角器的三角板 Triangle with compass protractor |
| 12/10/2014 | CN203995339U 数学画图装置 Math drawing device |
| 12/10/2014 | CN203995323U 一种改进的圆规 An improved compasses |
| 12/10/2014 | CN203995315U 数学教学用具 Mathematics teaching aids |
| 12/10/2014 | CN203995314U 一种新型教学用具 A new teaching aids |
| 12/10/2014 | CN203995313U 一种新型数学教学尺装置 A new ruler mathematics teaching device |
| 12/10/2014 | CN203995312U 一种多功能图形测绘工具 A versatile graphical mapping tool |
| 12/10/2014 | CN203995311U 快捷绘图三角板 Quick drawing triangle |
| 12/10/2014 | CN203995310U 多功能直尺 Multifunctional ruler |
| 12/10/2014 | CN203995309U 带有夹层的尺子 Sandwich with ruler |
| 12/10/2014 | CN203995308U 多功能教具 Multifunction aids |
| 12/10/2014 | CN203995307U 带有夹层的尺子 Sandwich with ruler |
| 12/10/2014 | CN102555612B 一种可发射红外线的尺子 One kind can emit infrared ruler |
| 12/09/2014 | US8904661 Transparent measuring device with enhanced viewing windows |
| 12/09/2014 | US8904660 Straightedge guide |
| 11/04/2014 | US8875411 Cylindrical ruler |
| 10/21/2014 | US8863397 Combination gauge for measuring the thickness of roofing shingles, metal roofing panels, and vinyl siding |
| 09/16/2014 | US8832950 Shoring batten and method of using the same |
| 09/09/2014 | US8826789 Fabric ruler with raised edge guide and rotary cutting tool with groove for engaging the edge guides |
| 09/09/2014 | US8826556 Multi-positional combination instrument |
| 09/04/2014 | US20140245624 Ruler |
| 08/13/2014 | CN203766342U 一种教学用折尺 A teaching with folding ruler |
| 08/13/2014 | CN203766339U 一体多用尺规 One multi-purpose ruler |
| 08/13/2014 | CN203766334U 一种教学板尺 A teaching board feet |
| 08/13/2014 | CN203766333U 一种可拆卸的悬停式折叠丁字尺 A removable hover folding T-square |
| 08/13/2014 | CN203766332U 一种多功能医用直尺 A multifunctional medical ruler |
| 07/30/2014 | CN203739481U 一种可折叠纸上定线尺 A foldable paper alignment ruler |
| 07/30/2014 | CN203739480U 多功能直尺 Multifunctional ruler |
| 07/30/2014 | CN102582323B 一种智能尺子 An intelligent ruler |
| 07/23/2014 | CN203727055U 直尺圆规 Ruler compass |
| 07/23/2014 | CN203727052U 数学教学用教学尺 Teaching mathematics teaching ruler |
| 07/23/2014 | CN203727051U 一种带折叠结构的绘图尺 A tape folded structure drawing ruler |
| 07/23/2014 | CN203727050U 一种具有圆规功能的直尺 Straightedge having a compass function |
| 07/23/2014 | CN203727049U 一种便于画长线段的短直尺 An easy to draw long-term segment of the short ruler |
| 07/23/2014 | CN203727038U 一种具有直尺和笔架功能的中性笔 Gel pen having a ruler and pen holder function |
| 07/22/2014 | US8782914 Segmented measuring assembly and method of use |
| 07/16/2014 | CN203713325U 航海平行尺 Sailing parallel ruler |
| 07/16/2014 | CN203713324U 一种可折叠式三角板 A collapsible type triangle |
| 07/16/2014 | CN203713323U 一种防止丁字尺移位的绘图装置 A T-square means for preventing displacement of the drawing |
| 07/09/2014 | CN203697797U 多功能绘图工具 Multifunctional Drawing Tools |
| 07/09/2014 | CN203697777U 用于数学教学的角度尺 Angle scale for mathematics teaching |
| 07/09/2014 | CN203697776U 一种可绘制圆的直尺 One kind of ruler to draw a circle |
| 07/02/2014 | CN203681078U 强定位防污t形尺 Strong positioning antifouling t-shaped feet |
| 07/02/2014 | CN103895416A 尺型笔套 Foot type pen |
| 07/01/2014 | US8763265 Combination square |
| 06/25/2014 | CN203666194U 一种多功能考试用尺 A multifunctional exam with a ruler |
| 06/25/2014 | CN203666189U 水笔防污尺 Pen fouling feet |
| 06/25/2014 | CN203666188U 防沾墨文具尺 Anti-staining ink Office Rulers |
| 06/25/2014 | CN103879206A 组合学习工具 Combination of learning tools |
| 06/25/2014 | CN103879204A 任意角黑板教学绘图仪 Arbitrary angle blackboard teaching plotter |
| 06/25/2014 | CN103879202A 一种多功能三角板 A multifunctional triangle |
| 06/25/2014 | CN103879201A 多功能刻度尺 Multifunctional scale |
| 06/18/2014 | CN203651280U 一种教学尺 A teaching feet |
| 06/18/2014 | CN203651272U 可以方便描绘虚线的直尺装置 You can easily depict dashed ruler device |
| 06/18/2014 | CN203651271U 一种带舌片的三角板 A set square with the tongues |
| 06/18/2014 | CN103862955A Angle ruler |
| 06/18/2014 | CN103862954A Multifunctional stationery |
| 06/18/2014 | CN103862953A Line drawing ruler |
| 06/11/2014 | CN203637406U 多功能尺 Multifunction foot |
| 06/11/2014 | CN203637405U 一种多功能教学绘图工具 Teaching a versatile drawing tool |
| 06/11/2014 | CN203637400U 带圆规的直尺 Compass with ruler |
| 06/11/2014 | CN103847358A Multifunctional set square |
| 06/11/2014 | CN103847357A Multifunctional ruler |
| 06/11/2014 | CN103847356A Design method of novel office multifunctional ruler for financial staff |
| 06/10/2014 | US8746116 Method and apparatus for making wide cuts |
| 06/04/2014 | CN203623224U 一种绘制剖面线的专用三角板 Draw a triangle section line dedicated |
| 06/04/2014 | CN203618973U 多功能梳子 Multifunction comb |
| 06/04/2014 | CN103841775A A USB flash disk with scales |
| 06/04/2014 | CN103832167A Multifunctional foldable ruler |