Invention Grant
- Patent Title: Fluid seals
- Patent Title (中): 流体密封
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Application No.: US81776459Application Date: 1959-06-03
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Publication No.: US3119593APublication Date: 1964-01-28
- Inventor: ZAWACKI JOHN P , ROY OTTER
- Applicant: FMC CORP
- Assignee: Fmc Corp
- Current Assignee: Fmc Corp
- Priority: US81776459 1959-06-03
- Main IPC: E21B34/02
- IPC: E21B34/02 ; F16J15/46 ; F16K5/02
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