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Letter Copying Roller

Description: Patent for a new and useful letter copying roller. This invention is to "provide a simple device for facilitating the copying of letters without the use of a press, blotters, pads, and similar appliances usually employed for this purpose (line 9 - 13).
Date: December 28, 1897
Creator: Roux, Harry L.
Partner: UNT Libraries Government Documents Department

Fluid Pressure Regulator

Description: Patent for a new and useful gas pressure regulator. This invention "relates to gas-pressure regulators especially adapted for use with gas stored under high pressure in a cylinder or similar portable storage vessel" (line 8 - 11).
Date: December 28, 1897
Creator: Clark, George Greenleaf
Partner: UNT Libraries Government Documents Department

Railway - Switch.

Description: Patent for a new and improvement in automatic safety railway-switches to "enable the motorman or conductor to conveniently and accurately insure the proper setting of the switch without leaving this position" (line 16 - 19).
Date: December 28, 1897
Creator: Girardeau, St. Julien & Murray, Richard James
Partner: UNT Libraries Government Documents Department
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