| 1951 | Portable Concrete Mixer Repair | Company Product |
| 1952 | Portable Concrete Mixers | Company Product |
| 1953 | Portable Concrete Plants | Company Product |
| 1954 | Portable Concrete Vibrator | Company Product |
| 1955 | Portable Cut Off | Company Product |
| 1956 | Portable Data Collectors | Company Product |
| 1957 | Portable Daylight Signalling Lamps | Company Product |
| 1958 | Portable Dehumidifiers | Company Product |
| 1959 | Portable Desktop Spirometer | Company Product |
| 1960 | Portable Diesel Generators | Company Product |
| 1961 | Portable Digital Cutting Machines | Company Product |
| 1962 | Portable Display Panels | Company Product |
| 1963 | Portable Do Meter | Company Product |
| 1964 | Portable Dry Mix Plants | Company Product |
| 1965 | Portable Electric Hammers | Company Product |
| 1966 | Portable Electric Jigsaws | Company Product |
| 1967 | Portable Electric Polishers | Company Product |
| 1968 | Portable Electric Saws | Company Product |
| 1969 | Portable Electric Scalers | Company Product |
| 1970 | Portable Electric Screwdrivers | Company Product |
| 1971 | Portable Electric Shears | Company Product |
| 1972 | Portable Electric Tappers | Company Product |
| 1973 | Portable Electronics | Company Product |
| 1974 | Portable Facing Machines | Company Product |
| 1975 | Portable Fans | Company Product |
| 1976 | Portable Fire Extinguishers | Company Product |
| 1977 | Portable Fitting Room | Company Product |
| 1978 | Portable Flame Cutting Machines | Company Product |
| 1979 | Portable Flange Facing Machines | Company Product |
| 1980 | Portable Flood Lights | Company Product |