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| All Patents in class 15/361 | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 1,576,428 | Mar. 09, 1926 | O.E. Hadwiger | Floor-surfacing machine | |
![]() | 1,934,814 | Nov. 14, 1933 | H.L. Myers | Light weight surfacing machine | |