Number | Date | Country | Kind |
---|---|---|---|
2001-002697 | Feb 2001 | JP |
Number | Name | Date | Kind |
---|---|---|---|
D19647 | Kinsey | Feb 1890 | S |
D54359 | Chapman | Jan 1920 | S |
D125059 | Rideout | Feb 1941 | S |
D138763 | Burton | Sep 1944 | S |
D138767 | Burton | Sep 1944 | S |
D213660 | Hicks | Mar 1969 | S |
D281788 | Albert | Dec 1985 | S |
D298146 | Glover | Oct 1988 | S |
4879161 | Raymond et al. | Nov 1989 | A |
D340260 | Parker et al. | Oct 1993 | S |
D375324 | Grass | Nov 1996 | S |
D400594 | Morray et al. | Nov 1998 | S |
D439344 | Hehenberger | Mar 2001 | S |
Entry |
---|
Double-Triangular Variant # 430, Hornung: Handbook of Designs and Devices, Apr. 1981, p. 48. |