| Patents for B43K 17 - Continuously-adjustable nibs, e.g. for drawing-pens; Holders therefor (226) |
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| 10/13/1987 | US4699535 Writing implement for calligraphy and method of using same |
| 07/29/1987 | CN86208770U Pen with adjustable nibs |
| 07/15/1987 | CN86210529U Ruling pen with line-drawing wheels |
| 06/24/1987 | CN86201585U Multiline drawing pen |
| 06/02/1987 | US4669905 Marking apparatus |
| 03/04/1987 | CN86201768U Guard sluggish charting-pen |
| 01/28/1987 | CN86200253U Pen about to paint dotted line |
| 09/03/1986 | CN85203226U Multiple types of line-drawing fountain pen |
| 07/09/1986 | CN85201528U Thickness adjuslable plotting unit |
| 06/18/1986 | CN85204090U Drawing fountain pen being able to draw thick lines as well as thin lines |
| 06/10/1986 | CA1205782A1 Writing instrument |
| 04/08/1986 | US4580918 Writing instrument having plural nibs with one being retractable |
| 11/13/1984 | US4481713 For stippling or drawing interrupted lines |
| 12/27/1983 | CA1159396A1 Disposable markers adapted for constant width and close proximity tracing |
| 03/17/1983 | WO1983000845A1 Stylograph for drawing dotted lines |
| 01/04/1983 | US4366755 Scale printing instrument |
| 12/21/1982 | CA1137944A1 Disposable instrument pen with integral spring member |
| 06/29/1982 | US4337471 Disposable markers adapted for constant width and close proximity tracing |
| 04/07/1982 | EP0049028A1 Disposable markers adapted for constant width and close proximity tracing |
| 02/23/1982 | US4316672 Shaking machine, especially for Indian ink writing device |
| 11/11/1980 | US4233609 Disposable instrument pen with integral spring member |
| 10/16/1979 | US4171168 Embouchure pens having plural contiguous nibs |
| 09/05/1978 | CA1037928A1 Instrument pen with integral pen arm attachment means |
| 07/26/1977 | US4037283 Electric stippling device |
| 12/21/1976 | US3997972 Writing device employing writing tip mounted on flexible rotating shaft |
| 09/28/1976 | US3983569 Instrument pen with integral pen arm attachment means |