Membership
Tour
Register
Log in
Stephen H. Levis
Follow
Person
Haverhill, MA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Process for bleaching mechanical wood pulp with sodium hydrosulfite...
Patent number
5,129,987
Issue date
Jul 14, 1992
Morton Thiokol, Inc.
Thomas Joachimides
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE