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US Patent: 711,287
Glass-working machine
Patentee:
Irving W. Colburn (exact or similar names) - Philadelphia, PA

USPTO Classifications:
137/625.21, 65/194

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
George F. Hoffman
James F. Hagen
Patent Dates:
Applied: Dec. 19, 1899
Granted: Oct. 14, 1902

Patent Pictures:
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