Patent Drawing of Engine - Lucy-USpatent268503 1882 Public domain image
Summary
Public domain scan of a technical diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
Tags
patents
patent drawings
us patent office
19th century technical drawings
architectural drawing sheets
elephants in art
lucy the elephant
united states patent drawings
inventions
Date
1882
Source
USPTO
Link
Copyright info
public domain