Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL30021CpublicationCriticalpatent/NL30021C/xx
H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
H01H19/02—Details
H01H19/04—Cases; Covers
H01H19/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings