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+ 1975 (?).c. General Electric 3-5507B
1969.a. Philips EL3301 + N6705
+ 1969.b. Philips N2205
+ 1969.e. Philips N2400
+++ 1969.c. Philips N2401S - world's 1st autoreverse cass. recorder
+ 1969.g. Philips 22RR482
+ 1969.h. Sanyo M-48M
+ ca1969.i. General Electric M-8430
+ 1967(?).n. Mercury 20-1002
+++ 1969.j.c. microcaseta/microcassette 
++ 1968.m. Akkord Combiphon 840
1970.a. Philips N2605
1970.b. Philips N2202
++ 1970.d. Philips N2209AV
++ 1970.e. Philips N2503