Collection
Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Film Developing, Fixing, and Washing Apparatus
Patent for a film developing, fixing, and washing apparatus with an improved method of rolling the film around the coil in the washing tank.
Date:
July 2, 1912
Creator:
Nyc, Frederick Francis
System:
The Portal to Texas History
Means for Lowering or Raising Drill Disks or Plows.
Patent for a means of raising and lowering drill disks on plows to allow the machine to travel and not get tangled in obstructions such as underbrush or rocks.
Date:
February 2, 1909
Creator:
Burks, William Edward
System:
The Portal to Texas History