Title:
Micrometer for circular size, especially of grooves
United States Patent 2679107
Inventors:
Gondek, John T.
Publication Date:
05/25/1954
Assignee:
NORTHERN PUMP COMPANY
Other Classes:
33/542.100
International Classes:
G01B5/12; G01B5/08
Foreign References:
| DE336996C | | | | |
| FR524392A | | | | |
| DE372013C | | | | |
| FR738834A | | | | |
| CH208011A | | | | |
| GB612457A | | | | |