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Percolator.
Patent for a percolator for coffee or tea that is "reliable and efficient in its operation, readily and easily adjusted to fit the various sizes of pots and also inexpensive in manufacture." (lines 44-47)
Date:
April 20, 1920
Creator:
Rose, Isabell M.
System:
The Portal to Texas History
Device for Teaching Music
Patent for a music education device aimed toward children and basic music building blocks. It is designed to teach the positions of piano keyboard notes through the use of differently dressed and named puppets. These puppets can be adjusted to also introduce basic musical concepts like rests, rhythm, and time.
Date:
April 20, 1920
Creator:
Maxwell, Annie L.
System:
The Portal to Texas History