No definitions found for 'quadruplex telegraphy'
Perhaps one of these:
quadruplicate,
quatuorvir,
quatrefeuille,
quadrable,
quadrivalent,
quadrifurcated,
quadraphonic system,
quadrifoil,
quadripartite,
quadrifarious,
quadriphyllous,
quadrupled,
quadruple time,
quadruplicating,
quadraphony,
quadribasic,
quadriplegia,
quadruplicated,
quadrible,
quadruplex,
quadruped,
quadruplication,
quadrivalve,
quadripara,
quadruple,
quadripartition,
quadruply,
quadriplegic,
quadriphonic system,
quadrivalvular,
quadrivium,
quadruplet,
quadraphonic,
quadripennate,
qatar peninsula,
quatrefoil,
quadriphonic,
quadruplane,
quadrifid,
quadrivalence,
quadrupedal,
quadruple bucky,
quadrupling,
quadruplex system,
quadripartitely,
quadrivial,
quadrifoliate