Year/Period |
1950-1960 |
Maker |
BLEEKER |
Country |
The Netherlands |
Signature |
(1): CURTIS . SYSTEMS // BLEEKER / HOLLAND // NOI [in logo] / No 45 / 67503 |
Category |
Other optical equipment |
Subcategory |
Refractometers |
Inventory number |
SM 79 |
For information on the color and number of the rings see refractometer color codes (in Dutch).
To see the inside of this instrument we refer to SM 168.
Thread counter
BLEEKER
1955-1965
Hemoglobin meter
REICHERT
1870-1880
Refractometers/saccharimeters
BLEEKER
1945-1965
Porro prism binocular 6×30
BLEEKER
ca. 1950