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| Patents for Albert G. Pieczentkowski | |||||
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| Number | Date | Patentee | Title | Type | |
| 890,725 | Jun. 16, 1908 | B.A. Swenson | Valve Remover | valve spring tools | |
| 896,336 | Aug. 18, 1908 | B.A. Swenson | Valve Remover | valve spring tools | |
| 924,668 | Jun. 15, 1909 | F.O. Jaques | Height Gage | height gages | |
| 934,730 | Sep. 21, 1909 | F.O. Jaques | Micrometer Gage | micrometers | |
| 949,083 | Feb. 15, 1910 | F. Mossberg | Wrench | nut wrenches | |
| 1,019,825 | Mar. 12, 1912 | F. Mossberg | Ratchet Wrench | ratchet wrenches | |
| D42,368 | Mar. 26, 1912 | F. Mossberg | Combination Tool | wrench combination tools | |
| 1,044,069 | Nov. 12, 1912 | F. Mossberg | Pipe Wrench | pipe wrenches | |
| 1,078,059 | Nov. 11, 1913 | F. Mossberg | Wrench | ratchet wrenches | |