| Patents for B43L 13 - Drawing instruments, or writing or drawing appliances or accessories, not otherwise provided for (6,769) |
|---|
| 04/07/1981 | US4259784 Magnified graphical copier |
| 03/25/1981 | EP0025741A1 Television communication system for the graphic creating of images |
| 03/24/1981 | US4258369 Pen recorder for enabling a recording pen to record characters |
| 03/17/1981 | US4257053 High-resolution laser plotter |
| 03/17/1981 | US4255867 Guideline and layout ruler for calligraphers |
| 03/10/1981 | US4254556 Portable drafting device for drawing parallel lines, comprising a working plane of flexible plastic material, adapted to be rolled |
| 03/10/1981 | US4254555 Perspective view apparatus |
| 03/03/1981 | US4254467 Vector to raster processor |
| 02/24/1981 | US4251920 Drawing apparatus |
| 02/17/1981 | US4250642 Planning aid |
| 02/11/1981 | EP0023518A1 Reflective tracing device |
| 02/10/1981 | US4249807 Color plotting device and method |
| 01/27/1981 | US4246703 Electronic drafting instrument with digital readout of displacement |
| 01/27/1981 | US4246702 Apparatus for use in drawing designs |
| 01/13/1981 | US4244105 Polytrack digital scale |
| 01/07/1981 | EP0021986A1 Device for automatically depositing a pasty substance on a surface and automatic machine therefor |
| 01/06/1981 | US4242804 Universal digital converter for drafting machines |
| 01/06/1981 | US4242802 Drawing pattern for the human form |
| 12/30/1980 | US4241512 Drawing apparatus |
| 12/09/1980 | US4237617 Polytrack opto-digital drafting machine |
| 11/25/1980 | US4235022 Device for linear drawing |
| 11/18/1980 | US4233751 Universal parallel ruler for three-dimensional drawing |
| 11/12/1980 | EP0018657A1 Set-square for dividing angles and tracing parallels |
| 11/11/1980 | US4232452 Apparatus for use in connection with dry transfer lettering and analogous sheets |
| 11/11/1980 | US4232448 Broken line drafting templates |
| 11/04/1980 | US4232358 Light frame for drafting table |
| 10/21/1980 | USRE30422 Graphic recorder |
| 10/07/1980 | US4226029 Reflective tracing device |
| 09/30/1980 | US4225548 Method for producing drawing stencils |
| 09/30/1980 | US4224742 Portable drawing apparatus |
| 09/23/1980 | US4223447 Writing guide for clipboard or the like |
| 09/16/1980 | US4222693 Precision drafting instrument |
| 09/16/1980 | US4222171 Drafting instrument |
| 09/09/1980 | US4221056 Universal parallel ruler with converted display of displacement |
| 09/09/1980 | US4221055 Drafting instrument |
| 08/21/1980 | WO1980001727A1 Reflective tracing device |
| 07/08/1980 | US4212049 Guideo carriage assembly for photodrafting equipment |
| 07/01/1980 | CA1080468A1 Graduated ruler with perspective scales |
| 06/24/1980 | US4209237 Drawing device |
| 06/10/1980 | US4206551 Universal parallel ruler for three-dimensional drawing |
| 06/03/1980 | US4205849 Foldable stencils puzzle |
| 05/28/1980 | EP0011238A1 Measuring and data recording machine for a numerical controlled X-Y-contouring cutting machine for glass sheets and its use |
| 05/20/1980 | CA1077710A1 Planning aid |
| 05/13/1980 | US4202111 Drafting apparatus |
| 04/16/1980 | EP0010016A1 Actuating mechanism for moving a straight edge parallel to itself on a drawing board |
| 04/08/1980 | US4197550 Apparatus for an automatic marking of drawings |
| 03/25/1980 | US4194293 Lettering triangle |
| 03/25/1980 | CA1074449A1 Alphanumeric and graphic symbol writing device for a plotter_ |
| 03/18/1980 | US4193200 Engraving machines |
| 03/18/1980 | CA1073660A1 Drafting template |
| 03/04/1980 | US4191450 Double clip lettering guide adjustment wedge |
| 02/12/1980 | US4188634 Method for regulating ink flow in drafting pens |
| 02/06/1980 | EP0007394A1 Controlling device for the supply of ink to the writing implement of a mechanical ink-jet printer |
| 01/29/1980 | US4185392 Lettering template |
| 01/29/1980 | US4185389 Egg decorating device |
| 01/22/1980 | US4184261 Multipurpose drafting and measuring instrument |
| 01/15/1980 | US4183143 Lettering guide |
| 01/08/1980 | US4182042 Marking device |
| 12/18/1979 | US4178709 Machine for use in pictorial drafting |
| 12/13/1979 | WO1979001076A1 Protractor unit for drawing-board |
| 12/12/1979 | EP0005915A1 Sign-making method and apparatus, character carrier sheets therefor |
| 12/04/1979 | US4176455 Plotting apparatus |
| 11/28/1979 | EP0005573A1 Protractor head for drawing board |
| 11/20/1979 | US4174573 Black board line marking device |
| 11/13/1979 | US4173829 Drafting instrument |
| 10/30/1979 | US4173021 Sealing element for an automatic drafting pen |
| 10/30/1979 | US4173020 Automatic drafting instrument with stylographic pen |
| 10/23/1979 | US4171574 Drawing and painting instrument for graphic designs |
| 10/23/1979 | US4171573 Cropping guide |
| 10/16/1979 | US4170825 Scaling parallel bar |
| 10/02/1979 | CA1063341A1 Copying device for tailor's trade |
| 09/25/1979 | US4168573 Copying easel |
| 09/18/1979 | US4167815 Device for pre-ruling printing forms |
| 09/04/1979 | US4166322 Rulers for making axonometric projection drawings |
| 09/04/1979 | US4166321 Orthographic to axonometric plotting apparatus |
| 09/04/1979 | CA1061539A1 Apparatus for drafting in accurate conic perspective |
| 08/21/1979 | US4165513 Signal-operated marking device |
| 07/31/1979 | US4162578 T-square |
| 07/24/1979 | CA1058858A1 Rule protractor |
| 07/10/1979 | CA1058338A1 Constant velocity vector generator |
| 07/03/1979 | US4159571 Geometrical instrument |
| 06/19/1979 | US4158257 Pantograph integrally formed or molded of plastic material |
| 06/05/1979 | US4157552 Pen holding device for an automatic drafting device |
| 06/05/1979 | US4157226 Shaft connectors |
| 05/01/1979 | US4151649 Universal parallel ruler device |
| 04/24/1979 | US4151536 Device for inscribing graphic and alphanumerical symbols on a recording medium |
| 04/24/1979 | US4150489 Adjustable template for sewing device |
| 03/27/1979 | US4145815 Carriage drawing machine |
| 03/06/1979 | US4142294 Cord clamp for drafting board assembly |
| 02/20/1979 | CA1048781A1 Mobile geometrical form |
| 02/06/1979 | US4137635 Standard parallel rule with perspective drawing device |
| 01/23/1979 | US4135303 Toy such as a board |
| 01/16/1979 | US4135245 Plotter with automatic pen-changer |
| 01/10/1979 | EP0000183A1 Device for transferring an image onto a photosensitive recording material |
| 01/02/1979 | US4131999 Vari-scale-style scriber |
| 12/26/1978 | US4130946 Educational device for motivating, and for developing scribing and reading skills in, the handicapped |
| 11/14/1978 | US4125658 Apparatus for use in drawing or marking graphic characters on a surface |
| 10/24/1978 | US4122528 Integrator circuits for a constant velocity vector generator |
| 10/24/1978 | US4121344 Universal drafting triangle |
| 10/24/1978 | US4121343 Picture frame mat opening marker |