Home / Vintage machine shop manufacturing history projects over the years. / More vintage machine shop manufacturing history projects from over the years. / Another patent history project . 31
Post date / 2021 / February
- PAGE 6
- PAGE 5
- PAGE 4
- PAGE 3
- PAGE 2. AIRCRAFT ENGINE CONTROL SYSTEM HISTORY.
- PATENT 2,350,139 PAGE 1. AIRCRAFT ENGINE CONTROL SYSTEM.
- PATENT 2,530,139. SHEET 2 OF 2.
- PATENT 2,530,139. 2 SHEETS-SHEET 1.
- Page 6.
- Page 5.
- Page 4.
- Page 3.
- Page 2. Hydraulic governor history.
- Page 1 of Rufus Oldenburger's engine governor patent.
- Patent 3,051,138. 2 sheets-sheet2.