| 1951 | Money Lenders | Company Product |
| 1952 | Money Packets | Company Product |
| 1953 | Moneylender | Company Product |
| 1954 | Monitiring System | Company Product |
| 1955 | Monitor Arms | Company Product |
| 1956 | Monitor Repair Service | Company Product |
| 1957 | Monitoring & Alarm System Engines | Company Product |
| 1958 | Monitoring & Measurement | Company Product |
| 1959 | Monitoring And Control Devices | Company Product |
| 1960 | Monitoring Platform | Company Product |
| 1961 | Monitoring Relays | Company Product |
| 1962 | Monitoring System | Company Product |
| 1963 | Monitors | Company Product |
| 1964 | Mono & | Company Product |
| 1965 | Mono Black Machines | Company Product |
| 1966 | Mono Block Tooth | Company Product |
| 1967 | Mono Ethylene Glycol | Company Product |
| 1968 | Mono Remanufactored Toner | Company Product |
| 1969 | Monobasic Sodium Phosphate | Company Product |
| 1970 | Monoblock Directional Control Valves | Company Product |
| 1971 | Monoblock Hydraulic Breaker | Company Product |
| 1972 | Monochlorobenzene | Company Product |
| 1973 | Monofilament Line | Company Product |
| 1974 | Monofilament Nets | Company Product |
| 1975 | Monolever Switch | Company Product |
| 1976 | Monolithic Push Buttons | Company Product |
| 1977 | Monorail Cranes | Company Product |
| 1978 | Monorail Hoists | Company Product |
| 1979 | Monorails | Company Product |
| 1980 | Monosodium Glutamate | Company Product |