| 2192638 | Electrical therapeutic machine | |||
| 2126070 | Electrotherapy | |||
| 2073428 | Electric high-tension apparatus, particularly for medical purposes | |||
| 2010018 | Excess-voltage protective device | |||
| 1655783 | Electrode for the combined therapeutic application of high-frequency current and of ultra-violet radiation | |||
| 1590930 | Ultra-violet electrode | |||
| 1466777 | Radioactive vacuum tube | |||
| 1193018 | N/A | |||
| 1156317 | N/A | |||
| 0950842 | N/A | |||
| 0765470 | N/A | |||
| 0647687 | N/A | |||
| 0628351 | N/A |