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| Patents Granted on 1977-07-05 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,033,210 | Jul. 05, 1977 | H.F. Swenson | Live Center With Hydraulic Pressure Indicator | metal lathe accessories and attachments | |
| 4,033,211 | Jul. 05, 1977 | H.F. Swenson | Replaceable flinger for live centers | metal lathe accessories and attachments | |