| 1921 | Stationary Gas | Company Product |
| 1922 | Switching Instrument | Company Product |
| 1923 | Sr186 | Company Product |
| 1924 | Sr106 | Company Product |
| 1925 | Sr90 | Company Product |
| 1926 | Sr80 | Company Product |
| 1927 | Sd 16 | Company Product |
| 1928 | Sr23 | Company Product |
| 1929 | Steering Pump | Company Product |
| 1930 | Shaped Spring | Company Product |
| 1931 | Silicon Rubber | Company Product |
| 1932 | Stainless Steel Full Bore Ball Stop Valves | Company Product |
| 1933 | Spring Turning Part | Company Product |
| 1934 | Shockproof Radios | Company Product |
| 1935 | Sh10 | Company Product |
| 1936 | Space Saving Meeting/seminar/lecture Solutions | Company Product |
| 1937 | Side-Mounted | Company Product |
| 1938 | Sh | Company Product |
| 1939 | Safe Area | Company Product |
| 1940 | Stand Up Banner | Company Product |
| 1941 | Stickers And Decals | Company Product |
| 1942 | Sticker Labels | Company Product |
| 1943 | Stand Calender Printing | Company Product |
| 1944 | Stamp Maker | Company Product |
| 1945 | Sticker Label Printing | Company Product |
| 1946 | Stainless Steel Stair Parts | Company Product |
| 1947 | Stainless Steel Hand Railing | Company Product |
| 1948 | Stainless Steel Handrail | Company Product |
| 1949 | Stainless Steel Balcony Railing | Company Product |
| 1950 | Stainless Steel Balcony | Company Product |