Invention Grant
- Patent Title: High vacuum device
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Application No.: US72146658Application Date: 1958-03-14
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Publication No.: US2939316APublication Date: 1960-06-07
- Inventor: NORMAN BEECHER , HNILICKA JR MILO P , PATTON PAUL W , WALSH ARTHUR G
- Applicant: NAT RES CORP
- Assignee: Evonik Roehm GmbH
- Current Assignee: Evonik Roehm GmbH
- Priority: US72146658 1958-03-14
- Main IPC: F02K9/96
- IPC: F02K9/96
Information query
