| 1921 | CAM 40/50 Ice Machine | |
| 1922 | Collar Bracket (For 213 Pipe) | |
| 1923 | CAM 20/30 Ice Machine | |
| 1924 | CAM 15 Ice Machine | |
| 1925 | CAM 10 Ice Machine | |
| 1926 | CAM 5 Ice Machine | |
| 1927 | Cast Iron Light Duty Recessed Inspection Cover & Frame | |
| 1928 | Cast Iron Light Duty Inspection Cover & Frame | |
| 1929 | Customized machine tools for any industry | |
| 1930 | Customized Electrical Systems for Factories | |
| 1931 | Customized Metal Cutting Machine | |
| 1932 | Cast Iron Heavy Duty Double Triangular Manhole Cover | |
| 1933 | Cast Iron Medium Duty Double Triangular Manhole Cover | |
| 1934 | Cast Bronze Square Floor Grating C/W Hairline Finishing Without Hole | |
| 1935 | Cast Bronze Square Floor Grating | |
| 1936 | Cast Bronze Round Grating C/W Hairline Finishing | |
| 1937 | Cast Bronze Round Grating Without Hole | |
| 1938 | C.P Brass Brush – M1 x F1 Chrome | |
| 1939 | C x C FI Tee - Chrome | |
| 1940 | C x C FI Wallplate Tee - Chrome | |
| 1941 | C x C MI Tee - Chrome | |
| 1942 | C x C x C Tee - Chrome | |
| 1943 | C x FI Wall Plate Elbow - Chrome | |
| 1944 | C x MI Elbow - Chrome | |
| 1945 | C x C Elbow - Chrome | |
| 1946 | C x FI Elbow - Chrome | |
| 1947 | C x MI Straight Coupling - Chrome | |
| 1948 | C x FI Straight Coupling - Chrome | |
| 1949 | C x C Coupler Socket - Chrome | |
| 1950 | C x C x FI Tee - Copper | |