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US Patent: 702X
Machine for perpendicular boring for manufacturing pumps
Patentee:
Roger Selden - Unknown, Unknown

USPTO Classifications:

Tool Categories:
metalworking machines : drilling and boring

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jul. 07, 1806

Patent Pictures:
USPTO pdf tiff
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Description:
This patent's specification and drawings were lost in the Patent Office fire of December 1836, and so little is known about this patent.

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