| 摘要 |
768,449. Batteries. ALPHA ACCESSORIES, Ltd. March 11, 1955 [March 15, 1954], No. 7480/54. Class 53. Two or more cylindrical cells each having an insulating sleeve a are held within a metal jacket e substantially extending round the cell walls. The top and bottom ends of the jacket e are respectively turned over an insulating closure plate h and a metal closure plate f, the latter being insulated from the cells by a cardboard plate g. |
