US PATENT SUBCLASS 968 / 373
.~ Arrangements for sealing (sealing the case and winding stem subclass 327) [G04B 39/00K]

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}
373.~ Arrangements for sealing (sealing the case and winding stem subclass 327) [G04B 39/00K] {1}
374  DD  .~.~> Without special sealing parts [G04B 39/00K2]