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Permutation-Lock.

Description: Patent for a permutation lock, which is harder to break into than the previous version.
Date: February 2, 1909
Creator: Maxfield, James R.
Partner: UNT Libraries Government Documents Department

Combined Andirons and Grate

Description: Patent for a combined andiron and grate that can be used with or without the grate attachment. The grate is adjustable to maintain variable fire depths and has "a swinging bracket for heating and cooking."
Date: February 2, 1915
Creator: Wilderspin, Alfred K.
Partner: UNT Libraries Government Documents Department
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