Watch Crystals; Fastening Or Sealing Of Crystals; Clock Glasses [g04b 39/00] Patents (Class 968/368)

Cross-Reference Art Collections

Made of glass [g04b 39/00b] (Class 968/369)
From a material other than glass [g04b 39/00c] (Class 968/370)
With means for magnified reading (combinations with a magnifying glass in general subclass 398) [g04b 39/00g] (Class 968/372)
Arrangements for sealing (sealing the case and winding stem subclass 327) [g04b 39/00k] (Class 968/373)

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