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WERN INTER AB

STOCKHOLM, SWEDEN.

 

MECHANICAL HVAC CONSULTING ENGINEERING.

Design, Control and Inspections in Europe, Africa, Asia, USA. 1963 - 2000.

Water, Sewage, Cooling, Piping, Heating, Ventilation, Air Conditioning, Automatic Controls and

 

SLIDE RULE ENGINEERING DESIGN.

Decimal Point Slide Rule Calculator IWA 1633 & IWA 1638.

Gold medal award at the International Invention Exhibition in Brussels 1966.

IWA 1638

SPECIAL CALCULATORS

Designed by WERN INTER AB for some Clients below.

Wern Inter AB made the design and a non-exclusive rights was given to a company

with the company name on for advertising purpose.

Manual instructions was prepared together.

 

Manufactured by IWA, W. Germany:

Air Duct Design

 

Manufactured by Inplastor AB, Sweden.

Conversion Factors Valve Factor Economic order size Draftsman triangle SI-Guide

 

HVAC Mechanical Prototype Calculators

Water - Heating - Ventilation

Stockholm, Sweden

Copyright 2018. Carl R. Wern

 

 

 

 

© Copyright 2015. All Rights Reserved.