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| All Patents in class 292/338 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,473,833 | Nov. 13, 1923 | M.J. Sasgen | Doorstop | door and window hardware | |
| 1,473,834 | Nov. 13, 1923 | M.J. Sasgen | Doorstop | door and window hardware | |
| 1,656,394 | Jan. 17, 1928 | M.J. Sasgen | Doorstop | door and window hardware | |
| 1,687,517 | Oct. 16, 1928 | M.J. Sasgen | Doorstop | door and window hardware | |
| 1,810,186 | Jun. 16, 1931 | F.T. Richards | Doorstop | ||
| 1,876,173 | Sep. 06, 1932 | A.M. Sasgen | Adjustable doorstop | door and window hardware | |