+++ 1967.s. Harman Kardon SC=2520 - world 1st 3 in 1 music centre
+++ 1972.h,a. SG-100 - world's first & smallest 3 in 1 audio portable device 
++ 1972.h,c. National SG-100 = world's first & smallest portable 3 in 1 system
+ 1972.j. National Panasonic SG-106F
1988.d. Electronica Sistem Compact Stereo 001
+ 1985.b. Philips F1462 MIDI - 3 in 1 overlapped
+ 1977.f. Philips SX 6987
+ 1979.e. Philips AH973
+ 1972.a. Sanyo G-2615
++ ca1973.i. Aciko ACRT-820S
+++ 1973.a. Rosita Commander Luxus