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++ 1967-8.p. Concord F-100 = National RQ-3001 made for USA 
+++ 1968.j. Crown CSC-9350 world's 1st stereo portable radiorecorder
+++ 1968.i. Grundig DeJur Mini-Memo /EN7
+++ 1967.f. Mercury AP8300 - 1st US stereo car compact-cassette (TM) recorder 
++ 1967.o. 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 
+++ 1968.i.c. caseta/cassette Grundig DeJ 614
++ 1964.f. Norelco 150 - first compact-cassette (TM) recorder made by Philips for USA
+++ 1964.c. Sanyo M-35 Micro-Pack - first cart recorder w variable speed
+++ 1964.c.c. caseta/cassette Sanyo Magazine 
+ 1959.b. ITC Omega = Fidelipac deck broadcast recorder
+++ 1958.a. RCA Victor CP-1