| 1921 | Cork Sheet | |
| 1924 | Customized Welding Works | |
| 1925 | Cantilever Rack Supported Platform | |
| 1926 | Cantilever Rack | |
| 1929 | Concrete Plant Mixer / Fertilizer Mixer Drum | |
| 1930 | Concrete Mixer Bosch Rexroth 90 Hydraulic Pump | |
| 1931 | Concrete Mixer Bosch Rexroth 63/80 Hydraulic Motor | |
| 1932 | Control Lever | |
| 1933 | Control Cable | |
| 1934 | Concrete Truck Hydraulic Chute Cylinder | |
| 1935 | Concrete Truck Main Chute/Extension Chute | |
| 1936 | Concrete Truck Hydraulic Oil Cooler | |
| 1937 | Concrete Truck Hopper | |
| 1938 | Concrete Truck Spillage Box | |
| 1939 | Concrete Truck Roller Stand | |
| 1940 | Concrete Truck V-Chute | |
| 1941 | Concrete Truck Water Tank | |
| 1945 | Carbon Block Filter Cartridge LCB-10 | |
| 1946 | Castor Wheel AC-1800F (Ultra Heavy Duty Purpose) | |
| 1947 | Castor Wheel AC-50 (Light Duty Purpose) | |
| 1948 | Computer LCD Screen Broken Ice LCT 1200/ 1500 | |
| 1949 | Computer LCD Screen Broken Ice LCT 500/ 800 | |
| 1950 | Computer LCD Screen Broken Ice LCT 250 | |