Number | Date | Country | Kind |
---|---|---|---|
3925964 | Aug 1989 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3421009 | Caruthers | Jan 1969 | |
4148548 | Thompson | Apr 1979 | |
4533241 | Masunaga et al. | Aug 1985 | |
4746948 | Matsui | May 1988 | |
4828383 | Kunishige et al. | May 1989 |
Number | Date | Country |
---|---|---|
0264360 | Apr 1988 | EPX |
3122027 | Dec 1982 | DEX |
60-107611 | Jun 1985 | JPX |
Entry |
---|
"Modern Photography", Jan. 1983, Advertisement for lens barrel, p. 173. |