Number | Name | Date | Kind |
---|---|---|---|
502513 | Giesecke | Aug 1893 | |
3134121 | Wachtel | May 1964 | |
4500939 | Gueret | Feb 1985 |
Number | Date | Country |
---|---|---|
1103290 | Mar 1961 | DEX |
0428661 | Jul 1967 | CHX |
Entry |
---|
PCT/US79/00782; WO80/01135 Jun. 12, 1980 Battaglia. |
PCT/GB84/00333; WO85/01422 Apr. 11, 1985 Steadman et al. |