Diamondscope Trademarks

DIAMONDSCOPE
illuminating apparatus for viewing precious stones through the agency of concentrated light
Abandoned  ·  March 31, 2005  ·  76634727  · 
diamondscope
DIAMONDSCOPE
ILLUMINATING APPARATUS FOR DISCLOSING DEFECTS OF PRECIOUS STONES THROUGH THE AGENCY OF CONCENTRATED LIGHT
Expired  ·  August 27, 1938  ·  71410056  ·