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US Patent: 497,809
Machine for bending stud-spirals
Patentee: Adolph Muehlmatt (exact or similar names) - Newport, KY USPTO Classifications: 140/92 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Alfred N. Davies James H. Layman	Patent Dates: Applied: Aug. 30, 1892 Granted: May 23, 1893 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Hamilton Tool Co.
Description: A "stud-spiral" is a fastener for shirt studs and similar jewelry items.

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