Cambridge Instrument Company pH meter patent no.396817
- Made:
- 1956
Cambridge Instrument Company pH meter patent no.396817, serial no. L.330947, with maker's test certificate dated 31 December 1956 and instruction book
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1994-185
- type:
- ph meter
- credit:
- St.George,D.