UNT Libraries Government Documents Department - 4 Matching Results

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Train-Order Holder.

Patent for Train-Order Holder designed to keep sheets of paper secure and in place to prevent writing on margins and displacement.

Date: November 30, 1920

Creator: Crady, Daniel R.

Item Type: Patent

Patent for improved smoking equipment stems which prevents saliva from running down the stem. The end of the stem has a new design which extends upwards and then wraps forward and downward, leaving a slot where no saliva can enter.

Date: February 22, 1921

Creator: Crossman, Alvin Amos

Item Type: Patent

Beaver Creek Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:31680

Date: 1920

Creator: Geological Survey (U.S.)

Item Type: Map

Location: 33.94 -98.94

Railroad-Signal

Patent for a railroad signal which will prevent train collisions at railway crossings, with illustrations.

Date: February 17, 1920

Creator: Humphrys, Sidney E.

Item Type: Patent

UNT Libraries Government Documents Department - 4 Matching Results

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Train-Order Holder.

Pipe and Like Stem.

Beaver Creek Quadrangle

Railroad-Signal