Invention Grant
- Patent Title: Vacuum device
-
Application No.: US49205765Application Date: 1965-10-01
-
Publication No.: US3330472APublication Date: 1967-07-11
- Inventor: MALIAKAL JOSEPH C
- Applicant: NAT RES CORP
- Assignee: Zaidan-Hojin Handotai Kenkyu Shinkokai
- Current Assignee: Zaidan-Hojin Handotai Kenkyu Shinkokai
- Priority: US49205765 1965-10-01
- Main IPC: H01J41/16
- IPC: H01J41/16
Information query
