US PATENT SUBCLASS 968 / 102
.~ Component parts or constructional details, e.g., construction of the lever or the escape wheel, etc; assembly and manufacture of spring subclass 11; assembly and manufacture of components, e.g., pinions, spindles, etc., subclass 94; oils for clockwork bearings in general subclass 281 [G04B 15/14]

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968 /   HD   HOROLOGY

95  DD  ESCAPEMENTS (magnetic subclass 496; in striking mechanisms subclass 224;) [G04B 15/00] {5}
102.~ Component parts or constructional details, e.g., construction of the lever or the escape wheel, etc; assembly and manufacture of spring subclass 11; assembly and manufacture of components, e.g., pinions, spindles, etc., subclass 94; oils for clockwork bearings in general subclass 281 [G04B 15/14]