Invention Grant
- Patent Title: Sealed crystal assembly
- Patent Title (中): 密封水晶装配
-
Application No.: US46394454Application Date: 1954-10-22
-
Publication No.: US2816239APublication Date: 1957-12-10
- Inventor: BERGE ROBERT E
- Applicant: JAMES KNIGHTS COMPANY
- Assignee: James Knights Company
- Current Assignee: James Knights Company
- Priority: US46394454 1954-10-22
- Main IPC: H03H3/04
- IPC: H03H3/04
Information query
