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| Patents for Roovers Brothers | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 687,168 | Nov. 19, 1901 | A.H. Roovers, A.W. Roovers | Coin controlled die press | |
 | 775,354 | Nov. 22, 1904 | A.H. Roovers, A.W. Roovers | Die press | |
 | 781,620 | Jan. 31, 1905 | A.W. Roovers, A.H. Roovers | Die press | |
 | 1,016,292 | Feb. 06, 1912 | A.W. Roovers | Die press | |