Invention Grant
- Patent Title: Apparatus for measuring the elastic properties of materials
- Patent Title (中): 用于测量材料弹性的装置
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Application No.: US26652239Application Date: 1939-04-07
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Publication No.: US2258276APublication Date: 1941-10-07
- Inventor: BOETTLER JACOB R , WERRING WALTER W
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US26652239 1939-04-07
- Main IPC: G01N3/32
- IPC: G01N3/32
Information query
