| Number | Name | Date | Kind |
|---|---|---|---|
| D153677 | Georganta | May 1949 | |
| D235385 | Smyth | Jun 1975 | |
| D271443 | MacDonald | Nov 1983 | |
| D285987 | MacDonald | Oct 1986 | |
| D299480 | Harari | Jan 1989 | |
| D306799 | Colan | Mar 1990 | |
| D308601 | MacDonald | Jun 1990 | |
| D310136 | MacDonald | Aug 1990 | |
| D310306 | MacDonald | Sep 1990 | |
| D310447 | MacDonald | Sep 1990 | |
| D310753 | Stillwagon et al. | Sep 1990 | |
| D317086 | Stillwagon et al. | May 1991 | |
| D318952 | Stillwagon et al. | Aug 1991 | |
| 760410 | Arnold | May 1904 | |
| 1835793 | Lurie | Dec 1931 | |
| 2129915 | Du Pont | Sep 1938 | |
| 2232333 | McGehee | Feb 1941 | |
| 2969823 | Sherwood | Jan 1961 | |
| 3186052 | Bobrow | Jun 1965 | |
| 3299679 | Anderson | Jan 1967 | |
| 3587262 | Kaye | Jun 1971 | |
| 3600917 | Krock | Aug 1971 | |
| 3618346 | Humphrey | Nov 1971 | |
| 3777523 | Holland | Dec 1973 | |
| 3906763 | Bochory | Sep 1975 | |
| 4079607 | Spruyt | Mar 1978 | |
| 4248071 | Kussoy | Feb 1981 | |
| 4422316 | Thomas et al. | Dec 1983 | |
| 4524594 | Bascou | Jun 1985 | |
| 4765459 | Edwards | Aug 1988 | |
| 4776191 | MacDonald | Oct 1988 | |
| 4821543 | Scungio | Apr 1989 | |
| 4951489 | Proch | Aug 1990 |
| Number | Date | Country |
|---|---|---|
| 0088699 | Sep 1983 | EPX |
| 0117204 | Aug 1984 | EPX |
| 625914 | Sep 1961 | ITX |
| Entry |
|---|
| Sketch of Spring/Hook Key Holder (cross-sectional). |
| Photographs of Transmitter Key Holder (Photocopies). |
| Photograph of Top View of Disconnected Ball/Groove Key Holder. |
| Photograph of End View of One Member of Ball/Groove Key Holder. |
| Photograph of Top View of Disconnected Compression Ring Key Holder. |
| Photograph of End View of One Member of Compression Ring Key Holder. |