26 BALLOON TRACKING AND METEOROLOGICAL DATA GATHERING SYSTEM, COMPRISING A METEOROLOGICAL RADIOSONDE MODIFIED FOR RETRANSMISSION OF TRACK INFORMATION, DATA RECEIVING EQUIPMENT, DATA PROCESSING EQUIPMENT, AND COMPONENTS THEREFOR
Trademark Events
Nov 4, 1992
Expired Sec. 9
Mar 7, 1977
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.