Knitting machines released under the name Riccar seem to be another close of Silver/Silver Reed knitting machines: they have the same look, (almost) same model numbers, and similar patterning mechanisms. Some sources state that these machines were manufactured for Russian markets.
Riccar RK-601, turn-knob, standard-gauge
Riccar RK-701, punchcards, standard-gauge
Riccar RK-702, punchcards, standard-gauge
Riccar RK-703, punchcards, standard-gauge
Riccar RK-704K, punchcards, standard-gauge, built-in knit-leader
Riccar RK-705K, punchcards, standard-gauge, built-in knit leader
Riccar RK-706K, punchcards, standard-gauge, built-in knit-leader
Riccar RK-707
Riccar RK-708, punchcards, standard-gauge, built-in knit-leader
Riccar LECLE, foldable, standard-gauge