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| Patents for M. J. Burkel | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,099,392 | Jun. 09, 1914 | R.A. Norling | Pneumatic-turbine drill | pneumatic tools | |
| 1,142,357 | Jun. 08, 1915 | R.A. Norling | Transmission gearing | handheld power drills | |
| 1,158,543 | Nov. 02, 1915 | R.A. Norling | Electric drill | handheld power drills | |