Invention Grant
- Patent Title: Tempering process for steel objects
- Patent Title (中): 钢材回火工艺
-
Application No.: US43071642Application Date: 1942-02-13
-
Publication No.: US2426773APublication Date: 1947-09-02
- Inventor: HOLDEN ARTEMAS F
- Applicant: HOLDEN ARTEMAS F
- Assignee: Artemas F Holden
- Current Assignee: Artemas F Holden
- Priority: US43071642 1942-02-13
- Main IPC: C21D1/46
- IPC: C21D1/46
Information query
