Membership
Tour
Register
Log in
Arnold Grass
Follow
Person
Schaffhausen, CH
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Composite panel with two outer layers and a central core
Patent number
4,250,220
Issue date
Feb 10, 1981
Swiss Aluminium Ltd.
Reinhard Schlatter
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES