UNT Libraries Government Documents Department - 3 Matching Results

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Edwards Aquifer Hydrogeologic Status Report for 1992
Report on the status of the Edwards Aquifer, discussing current and historic water levels, trends, and water quality.
Improvement In Padlocks.
Patent for improvements to Padlocks which can be opened with a key in conjunction with maneuvering the tumblers or locking-bolt.
Intrenching-Tool.
Patent for certain new and useful improvements in intrenching tools, including instructions and illustrations.
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