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| Number | Title | Issue Date |
| 7047659 | Multi-task promotional apparatus A promotional apparatus includes a housing having first and second openings and an elongated slot formed therein. A first measuring tape is disposed within the housing, and is retractably extendable from the housing via the first opening. A second measuring tape is ... | 05/23/2006 |
| 6209852 | Removable chain hoist position encoder assembly A chain hoist having a casing into which and with respect to which a chain travels is provided with an externally mounted position encoder assembly. A releasable connector, such as a ratchet strap, is employed to firmly but removably couple the position e... | 04/03/2001 |
| 4205447 | Pipe measuring device A device for measuring the length of a string of well pipe as it is run into or pulled from a well bore and for counting the number of pipe collars connecting the pipe sections together includes a support frame having an opening therethrough for accommoda... | 06/03/1980 |
