US Patent: 437,796 - Device to Facilitate the Drilling of Holes Centrally in Staffs for Watches, &c.


	Home\| FAQ	Search:Advanced\|Person\|Company\| Type\|Class	Login


Quick search:	Patent number:	Patent Date:

US Patent: 437,796

Device to Facilitate the Drilling of Holes Centrally in Staffs for Watches, &c.

Patentee:

William M. Preston (exact or similar names) - Rondout, Ulster County, NY

USPTO Classifications:

Tool Categories:

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Pictures: