US Patent: 703,306 - Spirit Level


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US Patent: 703,306

Spirit Level

Patentee:

Samuel E. Roe (exact or similar names) - New York, NY

USPTO Classifications:

033/381, D10/69

Tool Categories:

layout tools : levels : spirit levels

Assignees:

None

Manufacturer:

Eden Specialty Co. - Brooklyn, NY

Witnesses:

I. B. Owens

A. Russell Bond

Jno. M. Ritter

Patent Dates:
Applied:	Jul. 30, 1901
Granted:	Jun. 24, 1902

Patent Pictures: [ 1 | 2 ]

Patent 703,306 - edited drawing

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Description:

Mounting plates to hold adjacent level vials to enable horizontal and vertical readings to be made simultaneously. An "improved" version bears a 1924 patent date.