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Spirit Level Sheath.
Patent for a new and improved sheath for levels. This design "is to provide a rubber or other elastic sheath for levels, adapted to encircle the glass and prevent injury thereto in case of jars or falls, and to also form a steady securement between the level-glass and the metallic covering or housing therefor" (lines 13-18).
Date:
March 13, 1888
Creator:
Truitt, James Stuart
System:
The Portal to Texas History