| Number | Name | Date | Kind |
|---|---|---|---|
| D. 155978 | Fine | Nov 1949 | |
| 1657744 | Durkee | Jan 1928 | |
| 2044949 | Levy et al. | Jun 1936 | |
| 2193522 | Ross | Mar 1940 | |
| 2516479 | Opel | Jul 1950 | |
| 2812616 | Ford | Nov 1957 | |
| 3068487 | Hain | Dec 1962 | |
| 3333349 | Brumlik | Aug 1967 | |
| 3458959 | Young | Aug 1969 | |
| 3560313 | Herkimer | Feb 1971 | |
| 3590516 | Dunn | Jul 1971 | |
| 4123872 | Silva | Nov 1978 | |
| 4476167 | Duftler | Oct 1984 | |
| 4929215 | Lovik | May 1990 | |
| 5195917 | Russell et al. | Mar 1993 |
| Number | Date | Country |
|---|---|---|
| 452749 | May 1950 | IT |
| 465534 | Mar 1952 | IT |
| Entry |
|---|
| Picture of LEGO-type interlocking building blocks. |
| Picture of Tinkertoy building set. with detail of instruction sheet. |
| Picture of Mister Potatohead toy. |