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US Patent: 572,030
Dental Engine
Patentees:
Frederick C. Ries (exact or similar names) - Macon, Bibb County, GA
Henry H. Johnson (exact or similar names) - Macon, Bibb County, GA

USPTO Classifications:
433/112, 433/92

Tool Categories:
specialty machines : dental apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 24, 1896
Granted: Nov. 24, 1896

Patent Pictures:
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