Number | Name | Date | Kind |
---|---|---|---|
2961076 | White et al. | Nov 1960 | |
3075400 | Carlson | Jan 1963 | |
3353299 | Castonguay | Nov 1967 | |
3576482 | Rhee | Apr 1971 | |
3792332 | Fuller | Feb 1974 | |
4001969 | Hoobery | Jan 1977 |
Number | Date | Country |
---|---|---|
0798694 | Jan 1981 | SUX |
Entry |
---|
"Garage Door Openers", Consumer Reports, Nov. 1978, pp. 646-651. |