Patent search ap:("PERFECT CIRCLE CORP") AND inv:"WETZEL CLARENCE M" Page 1

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发明授权
Piston regrooving tool 失效
Title translation: 活塞加工工具

公开(公告)号：US2566048A

公开(公告)日：1951-08-28

申请号：US70572346

申请日：1946-10-25

Applicant: PERFECT CIRCLE CORP

Inventor： WETZEL CLARENCE M

IPC: B23B5/00 , B23B5/24

CPC classification number: B23B5/00 , Y10T82/23

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