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Combined Seed Planter and Cultivator.
Patent for a new and improved combined seed planter and cultivator. This design "is to provide combined seed-planters and cultivators constructed in such a manner that the seed-planting mechanism can be readily detached when not required for use, and also in such a manner that each plow can be adjusted independently of the others when desired" (lines 18-24).
Date:
August 15, 1882
Creator:
Gifford, George L.
System:
The Portal to Texas History
Camera.
Patent for "means for accurately focusing the main or photographic lens without relying upon the scale; to provide means for determining the full extent of the view to be photographed; and to provide for seeing the image upon a ground glass up to the moment of exposure." (lines 10-16)
Date:
August 15, 1916
Creator:
Overman, Charles Joseph
System:
The Portal to Texas History