Patents
Patents for B43L 13 - Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for (6,769)
04/1997
04/01/1997US5615485 Instruments for drawing circles
03/1997
03/26/1997CN2250046Y Stationary box
03/18/1997CA2061659C Media handling system for photoplotter and method of use
03/12/1997CN2249177Y Myopia protection device
03/05/1997EP0651690B1 Double-sided miter box for machine-tools, in particular panel saws
02/1997
02/26/1997CN2248131Y Multi-purpose physical drawing templet
02/04/1997US5600350 Multiple inkjet print cartridge alignment by scanning a reference pattern and sampling same with reference to a position encoder
01/1997
01/30/1997WO1997002959A1 Line marking device
01/29/1997CN2246076Y Set square with handle slot metal face
01/22/1997EP0754641A1 Segmented dancer bar and sheet material feed mechanism
01/22/1997EP0754639A1 Apparatus for working on sheet material and having friction hub
01/22/1997EP0754555A1 Coiled ink supply tube for plotters and the like
01/22/1997CN2245540Y Pipe mouth angle drawing apparatus
01/22/1997CN2245355Y Simple fashionable dress design stencils
01/13/1997CA2153712A1 Stock table informational and visual aid
01/01/1997CN2243988Y Multipurpose quick drawing instrument
12/1996
12/27/1996EP0710186A4 An angle divider
12/25/1996CN2243397Y Drawing board for children
12/25/1996CN2243396Y Projecting drawing instrument
12/11/1996CN2242186Y Appliance for learning-aid for writing and drawing
12/11/1996CN2242185Y Appliance for wantonly dividing any angle
12/04/1996EP0746140A1 Control unit for a printer and a plotter
12/04/1996EP0745482A2 Continuous refill of spring bag reservoir in an ink-jet printer/plotter
11/1996
11/27/1996CN2241065Y Multifunctional mapping instrument
11/26/1996US5579240 Method and an apparatus for illuminating points on a medium
11/26/1996US5577328 Electrical conduit entry template
11/20/1996CN2240443Y Standardized templater for question answer in examination
11/20/1996CN2240442Y Arbitrary angle drawing instrument
11/14/1996DE19516827A1 Drafting machine for design purposes
11/06/1996CN2239355Y Changeable rectangle instrument
11/05/1996US5571322 Pencil marking device for clipped cloth
10/1996
10/30/1996CN1134574A College entrance examination answer card filling board
10/29/1996US5568690 Drafting instrument
10/23/1996CN2238153Y Fixed bracket for T-square
10/23/1996CN2238152Y Multifunctional anti-interference health-care studying-aid device
10/22/1996US5566603 Double-sided miter box for machine tools in particular panel saws
10/09/1996EP0642423B1 A method and an apparatus for illuminating points on a medium
10/08/1996US5562452 Drawing toy
10/02/1996CN2236409Y Trisection arc curve-drawing instrument
10/02/1996CN2236408Y Multifunctional assembled drawing instrument
09/1996
09/25/1996CN2235903Y Multi-purpose protractor
09/18/1996CN1131100A Single body type halving instrument for enlarging or diminishing graph
09/12/1996WO1996027504A1 Improved instruments for drawing circles
09/11/1996CN2234866Y Single-pen fixed distance-regulating multiline drawing instrument
09/11/1996CN2234865Y Cord guide type single-track drawing machine
09/11/1996CN2234864Y Clip-shaped pen holder
09/11/1996CN2234720Y Omnibearing myopiaproof peneil box
09/04/1996CN1130132A Construction method for holding device of writing article and its products
09/03/1996US5551161 Figure coordinate marking apparatus
08/1996
08/28/1996CN2233843Y Multi-purpose set square
08/14/1996CN2232849Y Square and round rule gauge
07/1996
07/31/1996CN2231977Y Lever type pantographic instrument for enlarging or diminishing
07/31/1996CN2231976Y Small simple drawing instrument
07/31/1996CN2231975Y Myopia-preventing reading and writing posture correcting device
07/31/1996CN2231974Y Art lettering copybook
07/24/1996CN2231496Y Combined spline for drafting pattern of clothes
07/23/1996CA2112686C Sensor for sensing media in a pen plotter
07/17/1996CN1126971A An angle divider
07/11/1996WO1996020838A1 A stencil for making drawings with obtention of a virtual-depth effect and a method for using it
07/11/1996CA2209639A1 A stencil for making drawings with obtention of a virtual-depth effect and a method for using it
07/10/1996CN2230667Y Posture corrector for children
07/09/1996US5533900 Stencil holder and kit and method of making an image
07/03/1996CN2230238Y Multi-purpose quick-acting drawing instrument
07/03/1996CN2230237Y Multi-purpose quick-acting drawing instrument
07/03/1996CN2230236Y Corrector for exercising finger-shape of directional holding penholder
07/03/1996CN2230113Y Myopia-preventive protector for reading and writing
06/1996
06/25/1996US5530459 Printing media feed and retaining apparatus for a thermal inkjet printer/plotter
06/25/1996US5530207 Apparatus for making drawings on a sheet-like drawing carrier, for example a sheet of transparent paper, by means of a device for producing points, lines or the like, such as a pen or pencil or a pair of compasses
06/19/1996CN2229358Y Two-hole constant value line protractor compass
06/19/1996CN2229179Y Reading-rack
06/12/1996EP0446371B1 Writing utensil
06/12/1996CN2228849Y Vision protector for student
05/1996
05/29/1996CN2228023Y Magnetic vertical pen and its holder
05/28/1996US5519940 Multi-component stencil
05/22/1996CN2227676Y Unequal space extruding expander
05/22/1996CN2227674Y Street cleaning vehicle
05/22/1996CN1122754A Parallel rolling type multi-angle ruler
05/15/1996CN2227033Y Pattern regulating drawing machine
05/15/1996CN2227032Y Die set for practising writing
05/15/1996CN2227031Y Frame rocker-arm type multifunction wire controlled marking rule
05/08/1996EP0710186A1 An angle divider
05/08/1996CN2226636Y Automatic tracking screen window for sliding window
05/08/1996CN2226634Y Glass for door and window
05/08/1996CN2226629Y Safe
04/1996
04/30/1996US5511472 Embossing paper apparatus
04/30/1996US5511316 Stencil for cutting sandpaper
04/25/1996DE4437251A1 Drawing head for drawing machine with head part establishing angular direction
04/24/1996CN2225367Y Enlarging device for calligraphy and painting
04/24/1996CN2225366Y Adjustable sight-protective frame
04/24/1996CN2225365Y Writing-distance adjustable controlling rack
04/23/1996US5509374 Structure motion monitor
04/23/1996US5509212 Folding and locking drafting aid apparatus and method
04/17/1996CN2224739Y Myopia preventor
04/17/1996CN2224738Y Multifunctional and convenient ruler
04/17/1996CN2224725Y Writing pen holder
04/17/1996CN1120707A Figure coordinate marking apparatus
04/10/1996EP0643645B1 A method and a device for retaining a thin medium between two bodies
04/10/1996CN2224099Y Device for prompting posture of reading or writing
04/10/1996CN2224096Y Multi-purpose writing materials for students
04/10/1996CN2224094Y Multi-function straightedge
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