SCIENTIFIC AND ELECTRICAL AND MEDICAL MEASURING, SIGNALING AND CHECKING APPARATUS AND INSTRUMENTS FOR ELECTROPHORESIS, INCLUDING POWER SUPPLY UNITS, AND ACCESSORIES THEREFORE, NAMELY, MEASURING CHAMBERS, BUFFER BRIDGES, BRIDGE HOLDERS, CARRIER PLATES,THERMOSTATS, LEVELING TABLES, SAFETY COVERS, SAFETY POWER LEADS, CONNECTIONS PIECES SWITCHES, ELECTRODES, DIFFUSION BARRIERS, SAMPLE HOLDERS, SAMPLE SYRINGS, CARRIER MATERIALS, NAMELY, GELSPLATES, MICROTITER PLATES, PREPARATION FRAMES, PUNCHING B...