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| Patents for Briegel Method Tool Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,998,653 | Apr. 23, 1935 | T. Briegel | Tube jointing machine | electrician | |
| 2,035,686 | Mar. 31, 1936 | T. Briegel | Tool for forming joints in tubing | electrician | |