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US Patent: 1,858,390
Torsion Released Die
Patentees:
Ernest T. Bysshe (exact or similar names) - Springfield, Windsor County, VT
Robert R. Finn (exact or similar names) - Springfield, Windsor County, VT

USPTO Classifications:
235/63K, 408/142, 408/151

Tool Categories:
metalworking tools : taps and dies
metalworking tools : tap and die holders

Assignees:
Jones & Lamson Machine Co. - Springfield, Windsor County, VT

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 26, 1929
Granted: May 17, 1932

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Jones, Lamson & Co.

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