A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
N°

RED ROBIN (USA) 101 – 140

REGENT (USA) 1000 – 1046

REGIS (USA) (1943 – 1946)

RONNEX (BEL) 1000 series
RONNEX (BEL) 10000 series
RONNEX (BEL) RB(H) Bell series

ROYCROFT (USA) 151 – 180 (1928 – 1930)