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US Patent: 288,624
Spirit Level and Plumb
Patentee:
Leonard L. Davis (exact or similar names) - Springfield, MA

USPTO Classifications:
33/383, 33/386

Tool Categories:
layout tools : levels : metallic levels

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
T. A. Curtis
E. E. Holton

Patent Dates:
Applied: Jul. 30, 1883
Granted: Nov. 20, 1883

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Russ Allen.
Vintage Machinery entry for Leonard L. Davis

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