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| Patents Granted on 1939-05-23 | |||||
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| Number | Date | Patentee | Title | Type | |
| D114,970 | May 23, 1939 | B. Sullivan | Design for an electric hand saw | handheld circular saws | |
| 2,159,162 | May 23, 1939 | C.W. Johnson | Tap Holder Chuck | drill press chucks | |
| 2,159,193 | May 23, 1939 | J.H. Williams | Vise | hand vises | |
| 2,159,271 | May 23, 1939 | R.W. Janda | Washing Machine Agitator | washing machines | |
| 2,159,655 | May 23, 1939 | J. De Mooy | Plate Fastening Device | riveting tools | |