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Patent number:
Patent Date:
US Patent: 68,961
Improvement in Adjustable Spirit Levels
Patentee:
Leonard L. Davis (
exact
or
similar
names) - Springfield, MA
USPTO Classifications:
33/375
,
33/388
Tool Categories:
layout tools
:
levels
:
metallic levels
Assignees:
None
Manufacturer:
L. L. Davis
- Springfield, MA
Davis Level & Tool Co.
- Springfield, MA
Witnesses:
F. S. Bacon
Geo. B. Pierce
Patent Dates:
Granted:
Sep. 17, 1867
Patent Pictures: [
1
|
2
|
3
|
4
|
5
]
USPTO
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Google Patents
Report data errors or omissions to steward Russ Allen.
Description:
Known example (pic 3) by Davis Level & Tool Co.
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