US PATENT SUBCLASS 968 / 825
.~.~.~.~ Trimmer condensators (capacitors in general H01G) [G04F 5/06B2]


Current as of: June, 1999
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968 /   HD   HOROLOGY

817  DD  APPARATUS FOR PRODUCING PRESELECTED TIME INTERVALS FOR USE AS TIMING STANDARDS (generating clock signals for electric digital computers G06F 1/04; regulating frequency in general H03C, L) [G04F 5/00] {6}
822  DD  .~ Using oscillators with electromechanical resonators (producing electric oscillations or timing pulses [G04F 5/04] {2}
823  DD  .~.~ Using piezoelectric resonators [G04F 5/06] {1}
824  DD  .~.~.~ Constructional details (details of resonators in general H03H 9/02) [G043F 5/06B] {1}
825.~.~.~.~ Trimmer condensators (capacitors in general H01G) [G04F 5/06B2]