United States. Government Patents Board.

Ceramic, paper, rubber, textile, wood, and other products and processes

United States. Government Patents Board

1954

Chemical products and processes

United States. Government Patents Board

1954

Electrical and electronic apparatus

United States. Government Patents Board

1954

Food products and processes

United States. Government Patents Board

1954

Government owned inventions available for license

United States. Government Patents Board

1953

Government-owned inventions for free use

United States. Government Patents Board

1951

Instrumentation

United States. Government Patents Board

1954

Metal processes and apparatus, machinery, and transportation equipment

United States. Government Patents Board

1954

Ordinance

United States. Government Patents Board

1954

Patent abstract series

United States. Government Patents Board

1954