| 摘要 |
1,059,766. Pressure gauge diaphragms. MASCfflNENFABRIK BURCKHARDT A. G. March 23, 1964 [March 29, 1963J, No. 12224/64. Heading G1L. A diaphragm separating two pressure chambers comprises outer and inner members 1, 2 of hard material such as steel and an intermediate member 3 of elastic material such as rubber pressed between the members 1, 2 or bonded thereto. |
