US Patent: 63,060 - Book Keeper's Ruler


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


Quick search:	Patent number:	Patent Date:

US Patent: 63,060

Book Keeper's Ruler

Patentee:

A. O. Latham (exact or similar names) - Wheeling, WV

USPTO Classifications:

33/473

Tool Categories:

layout tools : bevels

rules

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Thos. H. Logan

M. Y. Watman

Patent Dates:
Granted:	Mar. 19, 1867

Patent Pictures:

USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Russ Allen.

Description:

Ruler with a second ruler swivelling on a pin that allows angled lines to be drawn without moving the main ruler and due to not having to move the primary ruler prevents smudging lines.