June 1956 Computer and scientific Trademarks by day
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| 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 |
Computer and scientific Trademarks filed in June 1956
WELEX
Filed: June 18, 1956
PERFORATING, LOGGING, PLUG SETTING AND REMOVAL, PACKER SETTING, RADIO ACTIVITY TRACING, AND DUMPBAILING IN WELLS
Owned by: HOLLIBURTON COMPANY
Serial Number: 72010502
