Assignee
EARL PRODUCTS INC
US·2 granted patents·36 citations·filing 2001–2001
Technology mixE21D2
Top patents by PatentIndex Score
2 records- 0166US6682268B2Method and apparatus for secondary roof support in an underground mineEARL PRODUCTS INC·Filed 2001·Granted Jan 27, 2004·19 cites·4 claims
- 0263US6637980B2Method and apparatus for re-tensioning a roof bolt in an underground mineEARL PRODUCTS INC·Filed 2001·Granted Oct 28, 2003·17 cites·12 claims
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