A method for taking a liquid sample

Antti Grönroos (Inventor), Jorma Ihalainen (Inventor), Hanna Kyllönen (Inventor), Hannu Mursunen (Inventor), Pentti Pirkonen (Inventor), Erkki Räsänen (Inventor), Jorma Rakkolainen (Inventor), Jouko Rakkolainen (Inventor), Pekka Savolahti (Inventor), Hannu Sekki (Inventor), Teemu Työppönen (Inventor), Pertti Vastamäki (Inventor)