作者: Willem Piet Van Hoof , Mark Johannes Antonius Verhoeven
DOI:
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摘要: An electronic device (21, 31, 41, 51, 61) comprises at least an element (22, 23) and a suction cup (1, 52) for releasably attaching the to wall. The flexible plastic (2, 12) one electromagnetic coil, which is electrically connected element. coil (3, 13) are preferably concentric.