Gidrometpribor - Proportional planimeters Ppr-1 and Ppr-2, new in factory lubrication (2) - metal

Description
Gidrometpribor - Proportional planimeters Ppr-1 and Ppr-2, new in factory lubrication (2) - metal
USSR - Late 20th century

Proportional planimeters ППр-1, ППр-2 means of research and measurement of quantities on chart disks of recording and recording instruments. By means of proportional planters Ppr-1, Ppr-2, it is possible to determine the average values of the record radii. According to the principle of operation, planimeters belong to the type of rolling mathematical devices
As new - unused, in factory lubrication, with documents
Dimensions: 15×13×4 cm
Weight: 900 g

Lot details
No. of items
2
Object
Proportional planimeters Ppr-1 and Ppr-2, new in factory lubrication
Material
metal
Manufacturer/ Brand
Gidrometpribor
Estimated Period
Late 20th century
Country of Origin
USSR
Condition
As new - unused
Dimensions
15×13×4 cm
Weight
900 g
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