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Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
7 results returnedSuggestions for wiring permissible equipment
Permissible Coal-Cutting Equipment Approved Prior to July 1, 1932
List of standard starters available to prospective builders of permissible outfits
Permissible electrically operated air compressors
Permissible electrically operated room hoists
Permissible electrically operated hand-held coal drills
Permissible electrically operated post drills and drilling machines
Published Year
Subject
- Air-compressors (1)
- Boring machinery (1)
- Coal mines and mining--Safety measures (1)
- Coal-mining machinery (1)
- Drills (1)
- Electricity in mining (1)
- Hoisting machinery (1)
Author
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