Name/Title
Steam Line Flow Calculator Slide RuleEntry/Object ID
1000.1692.115Description
Slide Rule, Steam Line Flow CalculatorMade/Created
Manufacturer
Pickett & Eckel Inc. (Pickett)Date made
1953Notes
where made: Chicago, IL
model number: 7TGeneral Notes
Note
Copyright (and made for) Service Pipeline Co., Picket triangle logo, LL Ridgeway Distributor.