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Improvement in Hair-Triggers for Fire-Arms.
Patent for "an improved trigger for fire-arms which shall be provided with a hair-trigger in such a way that the hair-trigger may be used or not, as may be desired, which shall be complete in itself, so that it may be applied to any kind of fire-arm without change in its construction" (lines 17-23), includes illustrations.
Date:
May 20, 1879
Creator:
Toepperwein, Emil A. F.
System:
The Portal to Texas History
Marking Attachment for Planters
Patent for a marking attachment for planters, designed primarily for row markers. Illustrations included.
Date:
August 20, 1907
Creator:
Spenrath, Max
System:
The Portal to Texas History
Dental Plate
Patent for an improved dental plate design that fits better in the mouth of the user and allows for easier speaking and eating.
Date:
May 20, 1919
Creator:
Glaser, Adolph J.
System:
The Portal to Texas History