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Patent number:
Patent Date:
US Patent: 2,164,455
Shaft indexing device
Patentee:
Franklin L. Hart (
exact
or
similar
names) - Boston, MA
USPTO Classifications:
269/172
,
269/239
,
269/243
,
409/222
,
74/813R
Tool Categories:
work holding
Assignees:
None
Manufacturer:
Walter W. Field & Son, Inc.
- Cambridge, MA
Witnesses:
Unknown
Patent Dates:
Applied:
Jan. 12, 1939
Granted:
Jul. 04, 1939
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
An example is marked with the patent number and "Walter W. Field & Son, Inc. / Cambridge, Mass."
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