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| Patents Granted on 1973-08-21 | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-932,130 | Aug. 21, 1973 | E.R. Lohneis | Tool change mechanism for a machine tool | tool changers and storage mechanisms | |
| 3,753,383 | Aug. 21, 1973 | F.L. Schmidt | Power Operated Drawbolt | metalworking machine mechanisms | |
| 3,753,385 | Aug. 21, 1973 | V. Zarlengo | Mounting Adapter for Cutting Tools | lathe tool holders and tool posts | |