Invention Grant
- Patent Title: Expansible swab cups
- Patent Title (中): 可膨胀的拭子杯
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Application No.: US12187361Application Date: 1961-07-05
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Publication No.: US3079205APublication Date: 1963-02-26
- Inventor: HUGLEY DALE G
- Applicant: SKINNER BROTHERS RUBBER COMPAN
- Assignee: Skinner Brothers Rubber Compan
- Current Assignee: Skinner Brothers Rubber Compan
- Priority: US12187361 1961-07-05
- Main IPC: E21B37/10
- IPC: E21B37/10
Public/Granted literature
- US07932740B1 Driving circuit with load calibration and the method thereof Public/Granted day:2011-04-26
Information query
