Multichallenge Trademarks

MULTICHALLENGE PLUS
spirometers and computer programs sold as a unit for bronchochallenge testing
Cancelled  ·  April 2, 1990  ·  74044642  · 
MULTICHALLENGE-PC
spirometers and computer programs sold as a unit for bronchochallenge testing
Cancelled  ·  April 2, 1990  ·  74044988  ·