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US Patent: 449,217
Polishing Cone
Patentee:
Arthur T. Good (exact or similar names) - Hamilton, Butler County, OH

USPTO Classifications:
15/230, 433/142, 451/521, 451/541

Tool Categories:
specialty machines : dental apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Nov. 06, 1886
Granted: Mar. 31, 1891

Patent Pictures:
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