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US Patent: 469,655
Elevator-controller
Patentee: Edwin S. Matthews (exact or similar names) - Cincinnati, OH USPTO Classifications: 187/311, 235/144M Tool Categories: Assignees: Edwin S. Matthews - Cincinnati, OH James L. Haven - Cincinnati, OH Manufacturer: Not known to have been produced Witnesses: M. H. Folger William A. Haven	Patent Dates: Applied: Jun. 04, 1891 Granted: Feb. 23, 1892 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for James L. Haven & Co.

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