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US Patent: 9,961
Boring cannon
Patentee:
Louis A. B. Walbach - Pikesville Arsenal, MD

USPTO Classifications:
175/255, 408/1R, 82/117, 99/524, 99/605

Tool Categories:
metalworking machines : drilling and boring
woodworking machines : wood drilling and boring

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Peter Hannay
P. H. Watson

Patent Dates:
Granted: Aug. 23, 1853

Patent Pictures:
USPTO pdf tiff
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