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++ 1989(?).e. Philips PMC100 Composer
++ 1988.i. Sharp WQ-T238 - sample of twice mechanism
++ 1988.h. Toshiba KT-RS1 
+ 1988.g. Fisher PH-M88
++ 1966.h. Concord F-100 = National RQ-3001 made for USA 
+++ 1968.j. Crown CSC-9350 world's 1st stereo portable radiorecorder
+++ 1967 .q. Grundig DeJur Mini-Memo /EN7
+++ 1967.f. Mercury AP8300 - 1st stereo car compact-cassette (TM) recorder 
++ 1966.h. National RQ-3001 
+++ 1966.f. Sears 1200 Playtape 
+++ 1968.a. Sony TC-50 = first ''compact-cassette'' voice recorder
+++ 1966.f.c. caseta/cartridge Playtape 
++ 1966.d. Blaupunkt Twen Junior 
+++ 1967 .q.c. caseta/cassette Grundig DeJ 614
++ 1964.f. Norelco 150 - first compact-cassette (TM) recorder made by Philips for USA