Patent drawing - Anderson Window Cleaning Device 1903 Public domain image
Summary
Diagram of Andersons 1903 window cleaning device.
https://www.google.com/patents/US743801
Tags
patents
patent drawings
us patent office
1903 patents
mary anderson inventor
patents from the united states
window cleaning
high resolution
diagram
inventions
Date
1903
Source
USPTO
Link
Copyright info
public domain