Keeprobe Trademarks

KEEPROBE
fuel storage monitoring transducers
Cancelled  ·  December 26, 1990  ·  74126572  · 
KEEPROBE PLM
petroleum product level measurement transducers
Cancelled  ·  February 1, 1991  ·  74136438  · 
KEEPROBE VLM
petroleum vapor level measurement transducers
Cancelled  ·  February 27, 1991  ·  74142602  ·