9 LIQUID SAMPLING APPARATUS INCLUDING A TETHERED ELEMENT SUBMERSIBLE IN LIQUID BODIES FOR TRAPPING AND RETRIEVING SAMPLES OF THE LIQUID AT SELECTED DEPTHS
Trademark Events
Jan 7, 1997
Expired Sec. 9
Aug 4, 1981
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.