H & S Machine & Supply Co., Inc.

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Patent # Title Filing Date Issue Date Intl Class

Expired/Abandoned/Withdrawn Patents

Patent # Title Filing Date Issue/Pub Date Intl Class
5,147,151 Washer insert for bearing plateAug 23, 91Sep 15, 92[E21D]
5,076,734 Roof bolt with paddle resin mixer and method for making the sameOct 05, 90Dec 31, 91[E21D]
5,042,961 Roof bolt with helical coil and bail anchorJun 15, 89Aug 27, 91[E21D]
4,984,938 Coated washer for an anchor bolt systemSep 28, 89Jan 15, 91[E21D]
4,704,053 Versatile roof bolt assemblyFeb 03, 86Nov 03, 87[E21D]
4,679,967 Truss bracketJul 25, 85Jul 14, 87[E21D]
4,655,645 Method and apparatus for anchoring roof boltsDec 31, 84Apr 07, 87[E21D]

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