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US Patent: 1,281,371
Apparatus for Applying Abrasives to Grinding Machines
Patentee:
halbert H. Hitchcock - Pittsburgh, PA

USPTO Classifications:
209/160, 451/447

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Elbert L. W. Hyde
Glenn H. Leresche
William B. Wharton

Patent Dates:
Applied: Dec. 31, 1913
Granted: Oct. 15, 1918

Patent Pictures:
USPTO pdf tiff
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