US PATENT SUBCLASS 968 / 85
GEARWORK (Gearwork for driving the hands subclass 140; calibers subclass 284; dispositions and components for transmission in general F16H) [G04B 13/00]


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968 /   HD   HOROLOGY

85GEARWORK (Gearwork for driving the hands subclass 140; calibers subclass 284; dispositions and components for transmission in general F16H) [G04B 13/00] {5}
86  DD  .~> With the choice of adjustable or varying transmission ratio [G04B 13/00B]
87  DD  .~> Where rotation in one direction is changed into a stepping movement [G04B 13/00C] {1}
89  DD  .~> Where a revolution in both directions is changed into a revolution in one direction [G04B 13/00D] {1}
91  DD  .~> With differential work [G04B 13/00G] {1}
93  DD  .~> Wheels; pinions; spindles; pivots (bearings subclass 271; chain wheels, spindles for chain wheels, also chains and driving weights subclass 6) [G04B 13/02] {1}