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| Patents for Joseph Arrufat | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-243,035 | Sep. 16, 1924 | L.S. Hall | Pipe threading machine | pipe threading machines | |
| CA-248,427 | Mar. 31, 1925 | L.S. Hall | Pipe threading machine | pipe threading machines | |