| 1921 | Petrol Motors | Company Product |
| 1922 | Planetary Gearboxes Overhaul | Company Product |
| 1923 | Planetary Gearboxes Repair | Company Product |
| 1924 | Pump Refurbishment | Company Product |
| 1925 | Process Industrial Valve Overhaul | Company Product |
| 1926 | Process Industrial Valve Accredited Testing Services | Company Product |
| 1927 | Process Industrial Valve Reconditioning | Company Product |
| 1928 | Process Industrial Valve Repair | Company Product |
| 1929 | Pneumatic Operated Ball Valves | Company Product |
| 1930 | Pressure Reducing Control Valves | Company Product |
| 1931 | Pressure Vacuum Relief Valves | Company Product |
| 1932 | Pipetting System | Company Product |
| 1933 | Pittsburgh Lock Machines | Company Product |
| 1934 | Plate Bending | Company Product |
| 1935 | Process Calibrators | Company Product |
| 1936 | Pipette Validation | Company Product |
| 1937 | Pipette Spare Parts | Company Product |
| 1938 | Pipette Repair | Company Product |
| 1939 | Pipette Calibration | Company Product |
| 1940 | Photometer | Company Product |
| 1941 | Pcr Plates | Company Product |
| 1942 | Pcr Cycler | Company Product |
| 1943 | Pipetting Robot | Company Product |
| 1944 | Positive Displacement Pipette | Company Product |
| 1945 | Pipette Tips | Company Product |
| 1946 | Pipetters | Company Product |
| 1947 | Pipette | Company Product |
| 1948 | Pipette Service | Company Product |
| 1949 | Phase Indicators | Company Product |
| 1950 | Probe Kits | Company Product |