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Sulphur-Mining Apparatus.

Description: Patent for a thermal solvent based sulfur mining apparatus that is placed in a sulfur mining well. Utilizing thermodynamics, the apparatus has a new way to introduce air or steam into the various parts of the apparatus. It is designed with "simplicity and durability of construction" (lines 49-50).
Date: December 17, 1918
Creator: Carmichael, Robert E.
Item Type: Refine your search to only Patent

Texas Beach & Bay Access Guide

Description: Guide from the Texas General Land Office providing information about public access sites along the Texas coastline. It contains general information for each county including population, area, kinds of recreation a brief history, and a chart of public sites and services, as well as maps highlighting beaches, parks, recreation facilities, and wildlife areas.
Date: 2001~
Creator: Texas. General Land Office.
Item Type: Refine your search to only Book
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