Title:
Center punching assembly
United States Patent 2730811
Inventors:
Gouldsmith Jr., Noel J.
Publication Date:
01/17/1956
Export Citation:
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Assignee:
Gouldsmith Jr., Noel J.
Primary Class:
33/677
Other Classes:
30/366, 33/670, 83/588, 359/810, D19/72
International Classes:
B25D5/00; B25D5/00
View Patent Images:
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US Patent References:
2599652Layout or hole locating device
2526528Magnetic layout punch
2462573Precision machine tool
2364497Centering device
2167103Punch
1424941Gauging and measuring instrument
Foreign References:
DE229553C