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US Patent: 335,527
Anti-friction journal-bearing
Patentee:
Wayne Kratzer - Allentown, PA

USPTO Classifications:
16/DIG.27, 384/514

Tool Categories:
industrial machines : industrial machine mechanisms : industrial machine bearings

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
O. E. Duffy
F. R. Harding

Patent Dates:
Applied: Dec. 22, 1885
Granted: Feb. 02, 1886

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Wayne Kratzer

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