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US Patent: 1,279,532
Drilling Apparatus
Patentee:
George H. Gilman - Claremont, NH

USPTO Classifications:
173/111, 173/156, 173/39, 173/78

Tool Categories:

Assignees:
Sullivan Machinery Co. - Boston, MA

Manufacturer:
Not known to have been produced

Witnesses:
Lee A. Knights
Charles H. Tipping

Patent Dates:
Applied: Jul. 19, 1915
Granted: Sep. 24, 1918

Patent Pictures:
USPTO pdf tiff
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