Micrometer for circular size, especially of grooves
United States Patent 2679107
US Patent References:
Internal dimension gauge
2591452

Internal diameter micrometer
2135912

Gauge
1760717

N/A
0794094

N/A
0691682


Inventors:
Gondek, John T.
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Publication Date:
05/25/1954
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Assignee:
NORTHERN PUMP COMPANY
Primary Class:
33/827
Other Classes:
33/542.100
International Classes:
G01B5/12; G01B5/08
US Patent References:
0536676N/A
Foreign References:
DE336996C
FR524392A
DE372013C
FR738834A
CH208011A
GB612457A