6 photos
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SPEED GOVERNOR PATENT 2,660,421.
5 photos
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THE PSYCHOLOGY OF THE INVENTOR.
45 photos
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An American Inventor history project for 2021.
5 photos
126 photos in 2 sub-albumsMechanical things patented back in the day.
- Quote...
- 608245 9
- 608245 8
- 608245 7
- 608245 6
- 608245 5
- 608245 4
- 608245 3
- 608245 2
- Patent number 608,245. For the horizontal compensating governor contraptoion.
- Patent 363,875 sheet 3 0f 3.
- Patent 363,875 sheet 2 of 3.
- A. W. Woodward oatmeal machine patent 363,875. Sheet 1 of 3.
- 363875 1
- A.W. WOODWARD OATMEAL-MACHINE PATENT 363,875.