Means for taking readings of meter-dialsdoi:US504159 AAlbert B. HerrickUS
Two decoding devices are provided for a code containing the characters (-, 0, +) and one is provided for a code containing the characters (0, 1), which specify the polarities of the magnet from which readings are taken. SCHNEIDER, GERNOTDAHINDEN, ERWINHUERLIMANN, HANS-JUERG ...