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| Patents Granted on 1972-03-07 | |||||
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| Number | Date | Patentee | Title | Type | |
| D223,081 | Mar. 07, 1972 | A.A. Freedman | Battery Carrier | ||
| 3,647,227 | Mar. 07, 1972 | G.H. Schultz, D.J. Warner, B.V. Lojkutz | Twin Take-Apart High-Temperature Shaft Seal | shaft seals | |
| 3,648,244 | Mar. 07, 1972 | J.K. McGee | Readout System for Selective Display of Digital Data on Time Shared Conductors | computer apparatus and systems | |