UNIVERSAL JOINT MODULE AND HEAD MOUNT-TYPE DISPLAYING DEVICE
PROBLEM TO BE SOLVED: To provide a universal joint module including a base, a first support base, spherical rotational shaft, a fixing tool, and an elastic member, and a head mount-type displaying device.SOLUTION: A base includes: an inner space; a hole communicating with the inner space; and an ope...
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Format: | Patent |
Sprache: | eng ; jpn |
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