Artifact Details

Title

Marbel Blood-Cell Calculator

Catalog Number

102662735

Type

Physical object

Date

1922 ca.

Manufacturer

The Marbel Blood Calculator Co.

Identifying Numbers

Model number VI-T
Other number JUNE 6, 1922 Patent date
Serial number 18694

Dimensions

overall: 3 1/4 in x 11 1/2 in x 3 3/4 in

Description

Plate on front of object reads, "MARBEL BLOOD-CELL CALCULATOR PERCENTAGE CALCULATOR FOR DIFFERENTIAL BLOOD FILMS ADDING MACHINE FOR ERYTHROCYTES, LEUCOCYTES, BLOOD PLATELETS".

Category

Calculator/mechanical

Credit

Gift of Warren Yogi

Lot Number

X3984.2007