Invention Grant
- Patent Title: Spreading tool
- Patent Title (中): 传播工具
-
Application No.: US63128145Application Date: 1945-11-28
-
Publication No.: US2443824APublication Date: 1948-06-22
- Inventor: JOHNSON ERNEST B
- Applicant: JOHNSON ERNEST B
- Assignee: Ernest B Johnson
- Current Assignee: Ernest B Johnson
- Priority: US63128145 1945-11-28
- Main IPC: B25B1/24
- IPC: B25B1/24 ; B25B27/00
Information query
