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++ 1952 a. Dictaphone Dictabelt (blue) / "curea"/banda audio detasabila 
+++ 1970 r. Harman Kardon CAD-5 = world's 1st cassette recorder using a sound filter
++ 1969.k. Philips N2602 - 1st stereo car cassette player embedded
++ 1970 .p. Motorola TM920S1 Quadraline - 1st (?) car quadro cart player
++ 1968.h. Grundig C200 De Luxe - 1st compact-cassette recorder of this producer
++ 1967.i. Telefunken M-4001 - 1-st compact-cassette recorder of this producer
++ 1967.h. Sanyo M-18 - first cassette-recorder of this producer
+++ 1971 g. Alpha One 
+++ 1971.g.c. Alpha One 
+++ 1978.b. Fisher CR-4025 - world's 1st wireless remote cassette recorder
1971 Exemplu de reclama pentru caseta / sample of advert for cassette (1)
sample of relevant adverts (2) / exemple de reclame
++ 1957.b Tefifon U (KC1/KoU) - world' 2nd radio-cassette player; 1st radio-endless cassette
++ 1966. g. Lear-Jet AS-830H - car radio-cartridge player
+++ 1966.b. Philips EL3310 - world 1st cass. having manual and auto recording level