Logo Brand Number of cassettes
in catalog 		Year
M Electronic 21 1987 - 1994
M Sound 4 1981 - 1982
M&R 6 1980 - 1981
M&T 1
MCE 1
MCK 3 1978 - 1979
MCP 6
MCS 4 1980 - 1982
MCW 1
MD 2
MDS 1 1970 - 1970
ME 2
MGA 7
MGB 1 1973 - 1973
MIG 3 1987 - 1987
MOD 1 1972 - 1972
MRT 1
MRX 1
MSL 3 1982 - 1988
MTV 3

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