Patents
Patentsohtained in TJ. & and all foreigu couutrica Exaininationa made. Lioenses and assignments Iraff n. Infringements prosecuted in sAl FedcaJ courts. Adice and pamiphletafrce. ScientlQc expert validïty opinions glven. Komodelsri'quired. Setabllshed A. B. 1865. Thos. 8. SrKAGUE & Son, 37 Cengress Street West, Detroit, Micii.
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Ann Arbor Argus
Thomas S. Sprague
37 Congress St Detroit