9929 records — Page 1 of 951
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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 ...

9929 records — Page 1 of 951