US PATENT SUBCLASS 968 / 372
.~ With means for magnified reading (combinations with a magnifying glass in general subclass 398) [G04B 39/00G]
Current as of:
June, 1999
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968 /
HD
HOROLOGY
368
DD
WATCH CRYSTALS; FASTENING OR SEALING OF CRYSTALS; CLOCK GLASSES [G04B 39/00]
{4}
372
.~ With means for magnified reading (combinations with a magnifying glass in general subclass 398) [G04B 39/00G]
