| Number | Name | Date | Kind |
|---|---|---|---|
| D328733 | Seymour | Aug 1992 | |
| D331566 | Seymour | Dec 1992 | |
| D357896 | Berry | May 1995 | |
| D358127 | Berry | May 1995 | |
| D379962 | Nuovo et al. | Jun 1997 |
| Entry |
|---|
| Sowah batteries on p. 481 of Hong Kong Enterprise, Jun. 1995. |
| Rechargable batteries on p. 133 of Hong Kong Enterprise, Jun. 1991. |
| Rechargable batteries on p. 569 of Hong Kong Enterprise, Jun. 1994. |