US Patent: 75,534 - Improvement in Adjustable Spirit Levels


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


Quick search:	Patent number:	Patent Date:

US Patent: 75,534

Improvement in Adjustable Spirit Levels

Patentee:

Leonard L. Davis (exact or similar names) - Springfield, MA

USPTO Classifications:

33/385

Tool Categories:

layout tools : levels

Assignees:

None

Manufacturer:

L. L. Davis Co. - Springfield, MA

Witnesses:

J. P. Buckland

N. B. Smith

Patent Dates:
Granted:	Mar. 17, 1868

Patent Pictures:

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

Description:

Adjustable spirit level utilizing metallic elastic adjusting-ears and screws to adjust the spirit level after construction. Davis acknowledges Hosmer's patent, 39,906 of 11 Nov 1862 and others as other prior adjustable patents for levels.