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SPARROC DRILLCO SERVICES PTY LTD
| SPARROC DRILLCO SERVICES PTY LTD Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20080307929 | Manual Tong - A manually or mechanically/hydraulically operable tong of light weight and high load capacity by means of a multi-layer interlocking construction achieved by cutting the shapes from plate steel by known means, assembling the plate sections in suitable order, and retained with each other by cylindrical steel pins ( | 12-18-2008 |