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US Patent: 85,819
Improvement in grindstone-journal boxes
Patentee:
James L. Haven (exact or similar names) - Cincinnati, OH

USPTO Classifications:
384/549, 451/342, 451/451

Tool Categories:
metalworking machines : grinders : sharpening machines : bench or pedestal grinders
industrial machines : industrial machine mechanisms : industrial machine bearings

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George H. Knight
James H. Layman

Patent Dates:
Granted: Jan. 12, 1869

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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