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Patents

 Subject
Subject Source: Library of Congress Subject Headings

Found in 2 Collections and/or Records:

Heilner & Ottenheimer Co. patent

 Digital Record
Identifier: MSS6721_S2_I216_B7_F6
Dates: 1884 May 23
Found in: L. Tom Perry Special Collections

United States Land Office patents

 Digital Record
Identifier: MSS6721_S2_I196_B7_F5
Dates: 1883 November 15
Found in: L. Tom Perry Special Collections

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