Title:
Gem grinding and polishing tool
United States Patent 2450984
Inventors:
Alfredo, Pastore
Publication Date:
10/12/1948
Export Citation:
Click for automatic bibliography generation
Assignee:
Alfredo, Pastore
Primary Class:
451/389
Other Classes:
248/904
International Classes:
B24B9/16; B24B9/06
View Patent Images:
Download PDF 2450984        PDF help
US Patent References:
2383619Instrument for grinding and polishing diamonds
2382099Diamond polishing and grinding device
1331480Gem grinding and polishing machine
1132882N/A
1103698N/A