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+++ 1964.e.c. 3M/Scotch Cantata 700 = greatest audio cassette
+++ 1966 .i. Muntz C-100 - first (?) car tape player of this producer
+++ 1963.d. OrrTronic P-600 AutoMate = first (?) car cartridge player made/used in USA
+++ 1966.e. Philips/Norelco 22RL962 = world's 1st radiorecorder with compact-cassette
+++ 1967.m.c Muntz Mini-Twin Stereo pak MT-E106
+++ 1944(?).a.c. Cosmos Industries MX-303A/ANQ-1 - wire cart
+++ 1982.e. Olympus L400 - smallest (micro)cassette recorder ever
+ 1980.j. Superscope CD-330
+++ 1942 .a. Textophon BW4 I - first audio cassette-3rd variant 
++ 1972.h,c. National SG-100 = world's first & smallest portable 3 in 1 system
+++ 1969.j. Olympus Zuiko Pearlcorder - world's 1st ''microcassette'' (TM) recorder 
++ 1967.p. Concord F-103/National RQ-231 = first japanese radiorecorder with ''compact-cassette'' (TM) 
+ 1972.j. National Panasonic SG-106F
1951.b. Loewe Optaphon 51 WAP - 1st magnetic cassette tape + autoreverse
+++ 1962-3.f.c. 3M(Scotch) type 270