Patents
Patents for B43L 13 - Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for (6,769)
06/1995
06/21/1995CN2201260Y Envelope geometric measurement pattern plate
06/14/1995CN2200548Y Multifunction calligraphy practising board
06/14/1995CN2200547Y Figure puzzle apparatus for algebra and geometry
06/07/1995CN2199875Y Vision protector for pupil
06/06/1995US5421937 Methods of fabricating a plotter drum
05/1995
05/31/1995CN2198813Y Sitting posture corrector for children
05/24/1995CN2198127Y Pantographic instrument
05/24/1995CN2198126Y Multipurpose drawing appliance
05/17/1995CN2197231Y Multifunctional drawing tool
05/17/1995CN2197230Y Universal drawing instrument
05/17/1995CN2197229Y Rapid marking instrument
05/17/1995CN2197220Y Ballpen with a cap
05/10/1995EP0651690A1 Double-sided miter box for machine-tools, in particular panel saws.
05/10/1995CN2196411Y Vision-protection and body-building reading rack
05/10/1995CN1102379A Pen cover with finger position mark for holding pen
05/03/1995CN2196032Y Belt for protecting children's sight
04/1995
04/26/1995CN2195449Y Multi-fucntion combined ruler
04/26/1995CN2195239Y Locating rack for reading books
04/26/1995CN2195238Y Folding reading and writing-rack
04/25/1995US5409383 Multi-functional writing device
04/25/1995US5408753 Protractor with a rotor
04/19/1995CN2194824Y Multipurpose templet
04/19/1995CN2194823Y E-shape moving trace drawing machine
04/19/1995CN2194822Y Vernier protractor ruler
04/19/1995CN2194821Y 多功能制图仪 Multifunction Mapper
04/19/1995CN2194820Y Rod gripping device
04/19/1995CN1101607A Regular polygon drawing board
04/05/1995CN2193815Y 看书辅助装置 Read auxiliary device
04/05/1995CN2193814Y Studying posture corrector
04/05/1995CN2193813Y Multi-purpose drawing instrument
04/05/1995CN2193812Y Multi-purpose drawing appliance
03/1995
03/29/1995CN2193261Y Ruler and compasses combined stationery
03/29/1995CN2193260Y Rack for reading and writing
03/22/1995EP0643645A1 A method and a device for retaining a thin medium between two bodies.
03/22/1995EP0399052B1 Method of setting drawing parameters in an xy plotter
03/22/1995CN2192480Y Light drawing machine with rope transmission
03/22/1995CN2192479Y Apparatus for preventing closing
03/22/1995CN2192478Y Reading writing apparatus for preventing myopia
03/15/1995EP0642423A1 A method and an apparatus for illuminating points on a medium.
03/15/1995CN2191775Y Compasses
03/14/1995US5396713 Combined decorative article, puzzle and stencil
03/09/1995DE3490067C2 Marking tool (scriber) for squared timber commonly used in the building trade
03/08/1995CN2191106Y Scale with multiple proportion
03/08/1995CN2191105Y Ruller-type drawing device
03/08/1995CN2191104Y Drawing board for teaching geometric drawing
03/08/1995CN2190909Y Adjustable writing-rack for students
03/01/1995CN2190569Y Correcting frame for pupil's writing posture
03/01/1995CN2190568Y String article with safety device
02/1995
02/22/1995CN2190034Y Exercise book for writing characters and patterns
02/22/1995CN2190033Y Three uniform divider
02/22/1995CN2190032Y Drawing template with angle measuring and circling functions
02/15/1995CN2189539Y Multi-purpose drawing instrument for student
02/15/1995CN1098611A Horizontal reading method and reading stand
02/08/1995CN2189065Y Multiplication, direction digit composition board
02/08/1995CN2189064Y Board for writing
02/08/1995CN2189063Y Board for writing for anti nearsightedness
02/07/1995US5386640 Drafting device
02/07/1995CA2045056C Pre-school stencil kit
02/02/1995WO1995003182A1 An angle divider
02/02/1995CA2167394A1 An angle divider
02/01/1995CN2188491Y Body posture correcting device for pupil doing homeworks
01/1995
01/25/1995CN2188039Y Multifunctional set square
01/25/1995CN2188038Y Multipurpose compasses
01/24/1995US5383277 Writing apparatus and method
01/24/1995US5383276 Angle trisector
01/18/1995CN2187555Y Sight protector for student of primary and middle school
01/18/1995CN2187554Y Multi-purpose set square
01/18/1995CN2187553Y Interest writing exercise plug plate
01/11/1995CN2187120Y Eyesight protector for children
01/11/1995CN2187119Y Multi-purpose drawing board
01/05/1995DE4143318C2 Plotter with permanently connected ink supply
12/1994
12/28/1994CN2186168Y Multifunction drawing board for middle school student
12/28/1994CN2186167Y Convex point braille writer
12/28/1994CN2186160Y Solid revised pen
12/21/1994CN2185684Y Writing or drawing instrument
12/21/1994CN2185683Y Geometric drawing-board
12/14/1994EP0628786A2 Angle trisector
12/14/1994CN2185208Y Picture pantograph
12/14/1994CN2185207Y Corrector for writing posture of students
12/14/1994CN2185206Y Device for correcting studying posture and preventing myopia
12/14/1994CN2185200Y Pen with finger holder and finger holder for pen
12/14/1994CN2185057Y Multifunctional reading-writing-rack
12/13/1994US5372506 Draw-through-pattern graphics system
12/07/1994CN2184574Y Multifunction drawing board
12/07/1994CN2184573Y Sectional symbol drawing ruler
12/07/1994CN2184572Y Multipurpose drawing tool
12/07/1994CN2184570Y Ruler pad
12/07/1994CN2184561Y Anti-shinkage card for colour pen nib
11/1994
11/30/1994CN2183901Y Sitting posture helper
11/30/1994CN2183900Y Pen holder
11/30/1994CN2183899Y Pen with marks eraser
11/23/1994CN2183274Y High-efficiency multi-function drawing instrument
11/23/1994CN2183273Y Multi-purpose ruler
11/23/1994CN2183272Y Motor frame of drawing instrument
11/23/1994CN2183271Y Drawing ruler
11/23/1994CN2183268Y Finger-protective pen
11/22/1994US5367180 Thin-film semiconductor device with field plate
11/16/1994CN2182746Y Appliance for keeping sitting posture when reading or writing
11/16/1994CN2182745Y Drawing design appliance for makeing cake
11/16/1994CN2182744Y Bridge like ruler for drawing purpose
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