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Patent number:
Patent Date:
US Patent: 2,730,074
Servo-motor valve
Patentee:
Walter Ernst (
exact
or
similar
names) - Dayton, OH
USPTO Classifications:
91/29
,
91/375R
,
91/420
,
91/464
Tool Categories:
metalworking machines
:
metalworking machine mechanisms
:
hydraulic apparatus
Assignees:
Thompson Grinder Co.
- Springfield, OH
Manufacturer:
Thompson Grinder Co.
- Springfield, OH
Witnesses:
Unknown
Patent Dates:
Applied:
Apr. 03, 1951
Granted:
Jan. 10, 1956
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Thompson Grinder Co.
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