Patent classifications
G
PHYSICS
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G04
HOROLOGY
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G04B
MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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43/00
Protecting clockworks by shields or other means against external influences, e.g. magnetic fields
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G04B43/002
Component shock protection arrangements
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