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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0359149 (1994-12-19) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 17 인용 특허 : 0 |
An electromagnetic percussion device, which includes a housing and an instrument which is connected to, and which extends beyond, the housing. The device further includes a piston body reciprocatable within the housing and adapted to impact the instrument. The piston body includes an intermediate re
An electromagnetic percussion device, comprising: (a) a housing; (b) an instrument connected to, and extending beyond, said housing; (c) a piston body reciprocatable within said housing and adapted to impact said instrument, said piston body including an intermediate region of a first diameter and a
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