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| Patents Granted on 1947-04-08 | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-440,664 | Apr. 08, 1947 | A.M. Stoner | Collet | metal lathe chucks | |
| CA-440,665 | Apr. 08, 1947 | A.M. Stoner | Collet | metal lathe chucks | |
| 2,418,639 | Apr. 08, 1947 | A.E. Horman | Arm for woodworking machines | radial arm saws | |
| 2,418,714 | Apr. 08, 1947 | H.E. Smith, I. Jacobson | Photographic Synchronizing Equipment | camera flash lighting apparatus | |
| 2,418,734 | Apr. 08, 1947 | M.J. Steffes | Tool Holder | lathe tool holders and tool posts | |