In the illustrated embodiment, a rectangular closing member 15 for closing {HEAD ~ a third opening portion} 32 formed in {TAIL ~ the casing} 30 and a connector member 16 protruding from the outer wall of the closing member 15 are molded integral with the primary bobbin 11 and the connecting portion 14, at the free end of the connecting portion 14 
formed in
In the illustrated embodiment , a rectangular closing member 15 for closing { HEAD ~ a third opening portion } 32 formed in { TAIL ~ the casing } 30 and a connector member 16 protruding from the outer wall of the closing member 15 are molded integral with the primary bobbin 11 and the connecting portion 14 , at the free end of the connecting portion 14
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