US Patent: 198,909 - Improvement in Spirit Levels


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US Patent: 198,909

Improvement in Spirit Levels

Patentees:

Frederick T. Ward (exact or similar names) - Mohawk, NY

Thomas Bedworth (exact or similar names) - Mohawk, NY

USPTO Classifications:

33/379

Tool Categories:

layout tools : levels

trade specific : stonemason

trade specific : bricklayer

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

William Helmer

Charles A. Paul

Patent Dates:
Applied:	Jun. 23, 1877
Granted:	Jan. 01, 1878

Patent Pictures:

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Description:

Mason's level with ribs on the leveling surface to allow the level to be placed on stone/bricks and mortar, where the crumbs of mortar will be pushed in between the ribs.