| 摘要 |
641,531. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. July 2, 1948, No. 17840. [Class 53] Accumulator grids for supporting active material are made of a synthetic resin or of fibrous fabrics such as cotton, wool, linen, or glass wool, impregnated with a synthetic resin, the grids being plated with lead or nickel. The synthetic resin may consist of polyvinyl chloride, polystyrene or phenol formaldehyde, and the grids may be given a preliminary coating of silver before being plated with lead or nickel. |
