US PATENT SUBCLASS 968 / 936
.~ In which functions not related to time can be displayed (digital output to display devices of digital computers G06F 3/14) [G04G 9/00F]


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968 /   HD   HOROLOGY

925  DD  VISUAL TIME- OR DATE-INDICATION MEANS [G04G 9/00] {9}
936.~ In which functions not related to time can be displayed (digital output to display devices of digital computers G06F 3/14) [G04G 9/00F] {1}
937  DD  .~.~> Combined with a calculator or computing means [G04G 9/00F2]