Logo Brand Number of cassettes
in catalog 		Year
M Sound 14 1976 - 1982
M&R 7 1980 - 1981
M&T 1
M.N.B. Electronics 0
MCE 1
MCK 3 1978 - 1979
MCMX 1
MCP 8 1984 - 1984
MCS 4 1980 - 1982
MCW 2
MD 3
MDS 1 1970 - 1970
ME 2
MGA 7
MGB 1 1973 - 1973
MIG 3 1987 - 1987
MOD 1 1972 - 1972
MPO 1
MRT 2
MRX 1

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