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| All Patents of Type: construction machines | |||||
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| Number | Date | Patentee | Title | Type | |
| 216,162 | Jun. 03, 1879 | C.D. Edwards | Improvement in ditching-machines | construction machines | |
| 810,478 | Jan. 23, 1906 | C.D. Edwards | Landside-wheel | construction machines | |
| 869,354 | Oct. 29, 1907 | C.D. Edwards | Grading-machine | construction machines | |
| 1,723,019 | Aug. 06, 1929 | R.A. Edwards | Road grader | graders and dozers | |