| 1951 | Portable Air Conditioning | Company Product |
| 1952 | Portable Air Coolers | Company Product |
| 1953 | Portable Aircond | Company Product |
| 1954 | Portable Airconds | Company Product |
| 1955 | Portable Balancers | Company Product |
| 1956 | Portable Band Saws | Company Product |
| 1957 | Portable Banknote Detectors | Company Product |
| 1958 | Portable Bar Forming Machines | Company Product |
| 1959 | Portable Boring Machine | Company Product |
| 1960 | Portable Boring Machines | Company Product |
| 1961 | Portable Buildings | Company Product |
| 1962 | Portable CNC Cutting Equipment | Company Product |
| 1963 | Portable CNC Cutting Machines | Company Product |
| 1964 | Portable Cabin Containers | Company Product |
| 1965 | Portable Cabin, Site Office Container Leasing | Company Product |
| 1966 | Portable Cabins | Company Product |
| 1967 | Portable Calibrators | Company Product |
| 1968 | Portable Chairs | Company Product |
| 1969 | Portable Circular Saws | Company Product |
| 1970 | Portable Classroom Tables | Company Product |
| 1971 | Portable Cold Cut Machines | Company Product |
| 1972 | Portable Concrete Mixer Rental | Company Product |
| 1973 | Portable Concrete Mixer Repair | Company Product |
| 1974 | Portable Concrete Mixers | Company Product |
| 1975 | Portable Concrete Plants | Company Product |
| 1976 | Portable Concrete Vibrator | Company Product |
| 1977 | Portable Cut Off | Company Product |
| 1978 | Portable Data Collectors | Company Product |
| 1979 | Portable Daylight Signalling Lamps | Company Product |
| 1980 | Portable Dehumidifiers | Company Product |