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| Patents for Alfred P. Speckin | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,608,112 | Aug. 26, 1952 | A.P. Speckin | Adjustable multiple spindle head | multiple spindle drilling heads | |
| 2,709,267 | May 31, 1955 | J.R. Bashor, A.P. Speckin | Precision tapping spindle | tapping heads and chucks | |
| 2,884,818 | May 05, 1959 | J.R. Bashor, A.P. Speckin | Drill head | multiple spindle drilling heads | |