| 1921 | Coiling Doors | Company Product |
| 1922 | Coils | Company Product |
| 1923 | Coin Counters | Company Product |
| 1924 | Coin Counters & Sorters | Company Product |
| 1925 | Coin Counting Machines | Company Product |
| 1926 | Coin Dealers | Company Product |
| 1927 | Coin Sorters | Company Product |
| 1928 | Coin Wrapping Machines | Company Product |
| 1929 | Coining Presses | Company Product |
| 1930 | Cold & Heat Insulation Contractors | Company Product |
| 1931 | Cold Brew Coffee Machines | Company Product |
| 1932 | Cold Brew Tea Machines | Company Product |
| 1933 | Cold Chisel | Company Product |
| 1934 | Cold Cups | Company Product |
| 1935 | Cold Drawn Bar | Company Product |
| 1936 | Cold End Coating | Company Product |
| 1937 | Cold End Spray Bridge | Company Product |
| 1938 | Cold Forging Die | Company Product |
| 1939 | Cold Galvanised Silver | Company Product |
| 1940 | Cold Galvanising | Company Product |
| 1941 | Cold Galvanized | Company Product |
| 1942 | Cold Galvanized Sliver Paints | Company Product |
| 1943 | Cold Galvanized Spray | Company Product |
| 1944 | Cold Galvanizing Compounds | Company Product |
| 1945 | Cold Miling Return Roller | Company Product |
| 1946 | Cold Mix Asphalt Plant | Company Product |
| 1947 | Cold Planers | Company Product |
| 1948 | Cold Plasma | Company Product |
| 1949 | Cold Pressed Coconut Oil | Company Product |
| 1950 | Cold Recycler | Company Product |