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US Patent: 2,321,442
Collapsible antifriction nut
Patentee:
John Clifford Wilson (exact or similar names) - Springfield, OH

USPTO Classifications:
15/104.33, 451/186, 451/363, 74/424.78, 74/424.92, 74/625, 74/89.38

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine clutches
metalworking machines : grinders

Assignees:
Thompson Grinder Co. - Springfield, OH

Manufacturer:
Thompson Grinder Co. - Springfield, OH

Witnesses:
Unknown
Patent Dates:
Applied: Dec. 10, 1941
Granted: Jun. 08, 1943

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Thompson Grinder Co.

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