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Seed-Dropping Plate
Patent for a versatile seed dropping mechanism that retains the seed shells as they drop to prevent machine clogging and seed droppings.
Date:
January 25, 1916
Creator:
Grinstead, Albert N.
Object Type:
Patent
System:
The Portal to Texas History
School Building Alterations, Royston, Texas: Details and Sections
Detail/section plan for alterations and additions to a school building in Royston, Texas. It includes typical wall section, diagrams of various other sections, detail of door, detail of gym fix sash, detail of class room window, detail of rail, detail of interior door, and full size diagrams.
Date:
June 25, 1937
Creator:
David S. Castle Co.
Object Type:
Technical Drawing
System:
The Portal to Texas History