Webster's diaphragm pressure gauge
- patentee:
- James Fern Webster
Webster's diaphragm pressure gauge
Details
- Category:
- Motive Power
- Object Number:
- 1918-221
- Measurements:
-
overall: 430 mm 130 mm,
- type:
- pressure gauges
- credit:
- Mr. P.A. Newton (of Newton & Son).