173 records — Page 5 of 18
[ ]
Collapse
[ ]
Expand
Level:
file
Collection ID:
Record Unit 84
Repository:
Smithsonian Institution Archives
[ ]
Collapse
[ ]
Expand
Level:
file
Collection ID:
Accession 94-092
Repository:
Smithsonian Institution Archives
[ ]
Collapse
[ ]
Expand
Dates:
1911-1939
Level:
subseries
Collection ID:
NASM.1987.0029
Repository:
National Air and Space Museum Archives

This subseries consists of patents issued by the United States government. There are two types of US patents, a design patent and a utility patent. A design patent refers to the visual ornamental characteristics embodied in, or applied to, an article of manufacture. A utility patent protects useful processes, machines, articles of manufacture, and ...

[ ]
Collapse
[ ]
Expand
Level:
file
Collection ID:
Accession T90005
Repository:
Smithsonian Institution Archives
173 records — Page 5 of 18