US PATENT SUBCLASS 968 / 746
OILING DEVICES; SPECIAL LUBRICANT CONTAINERS FOR WATCHMAKERS (bearings constructed with regard to oiling of the clockwork subclass 281; oilcans for lubricating in general F16N 3/04) [G04D 5/00]

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968 /   HD   HOROLOGY

746OILING DEVICES; SPECIAL LUBRICANT CONTAINERS FOR WATCHMAKERS (bearings constructed with regard to oiling of the clockwork subclass 281; oilcans for lubricating in general F16N 3/04) [G04D 5/00] {1}
747  DD  .~> Oilcans and other handtools for lubricating special parts of the clockwork mechanism [G04D 5/00B]