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Inventor
KWIATKOWSKI JOACHIM
DE
2 patents
Patents
2 patents
US4418787A
Dec 6, 1983
Hearing aid with audio path duct extension element, and extension element attachment
BOSCH GMBH ROBERT
36 citations
88
US4538927A
Sep 3, 1985
Electrical temperature sensor, particularly for fever thermometer use
BOSCH GMBH ROBERT
38 citations
87