+++ 1980.l.c. Philips LDB 4401 - world's first digital minicassette
+++ 1970.m.c. Sanyo Tape Cartridge
++ 1970.k. Grundig CN 222 - first deck & HIFI (?) of this producer
+++ 1971.e. Pioneer M-7S Hipac
+++ 1956 ?.c. Cousino MR-9000 ''Sales maker''
+++ 1964.e.c. 3M/Scotch Cantata 700 = greatest audio cassette
+++ 1982.e. Olympus L400 - smallest (micro)cassette recorder ever
+++ 1969.j. Olympus Zuiko Pearlcorder - world's 1st ''microcassette'' (TM) recorder 
+ 1972.j. National Panasonic SG-106F
1951.b. Loewe Optaphon 51 WAP
+++ 1962-3.f.c. 3M(Scotch) type 270
+++ 1965.a. Grundig C100 - first DC cassette recorder
+ 1976.h. Philips N2520
++ 1976.c. Technics RS-630USD
+ 1977.j. Sony CF-950S