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US Patent: 434,576
Drilling Machine
Patentee:
Horace B. Wyman (exact or similar names) - Newburyport, Essex County, MA

USPTO Classifications:
173/145, 408/137, 74/841, 74/89.27, 74/89.31

Tool Categories:
stoneworking : stone boring and drilling machines
trade specific : miner

Assignees:
Horace B. Wyman - Newburyport, Essex County, MA
Charles G. Welch - Osceola Mills, Clearfield County, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: May 16, 1890
Granted: Aug. 19, 1890

Patent Pictures:
USPTO (New site tip)
Google Patents
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