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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0538301 (1975-01-03) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 11 인용 특허 : 0 |
An improved peening tool comprising a cylindrical body having a plurality of holes each adapted to receive a spherically shaped ball bearing. A sleeve member having a plurality of holes is located over the cylindrical body so that each hole in said sleeve is aligned with the hole in said cylindrical
A peening tool comprising: a solid cylindrical body having a centrally located hollow portion defining a given body thickness, a plurality of holes in said body thickness located radially in said cylindrical body, said holes having a reduced diameter near the peripheral portion of said hollow cylind
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