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US Patent: 297,013
Tool for boring square holes
Patentee:
Maier Rothschild (exact or similar names) - Shamokin, PA

USPTO Classifications:
144/118, 144/78, 144/83, 408/25

Tool Categories:
woodworking machines : wood drilling and boring

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
E. F. Kastenhuber
W. Hauff
Patent Dates:
Applied: Nov. 08, 1883
Granted: Apr. 15, 1884

Patent Pictures:
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