Hierarchy classification:

1. top of the aat hierarchies
2. Brand Names Facet
3. Brand Names (hierarchy name)
4. brand name techniques and processes

Anotations

Scope note:

Proprietary technique for document repair and restoration, developed by William J. Barrow in the mid-20th century, in which documents are deacidified, then laminated under heat and pressure between sheets of tissue and cellulose acetate film.