Drilldown: Patents
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Alfred Henry De Camp (1) ·
Byron B Brockway (1) ·
Charles H. Lee (1) ·
Edward Smethurst (1) ·
Fred D. Barnes (1) ·
Guibert (2) ·
Harold B Anderson (1) ·
Henry P. Merriam (1) ·
Irwin Benedict Fuller (1) ·
Johnstone (1) ·
Milton E. Winans (1) ·
R. Buzer (1) ·
Richard Weil (1) ·
Robert Werner (1) ·
Rudolf Westphalen (1) ·
Winfield Scott Sims (1)
None (1) ·
aerial (1) ·
braking (1) ·
electric (1) ·
elevated (1) ·
elevated railway (1) ·
ground facilities (1) ·
gun (1) ·
LTA? (1) ·
marine (1) ·
Marine propulsion (1) ·
military (1) ·
motor (1) ·
parachute (1) ·
projectile (1) ·
propeller (3) ·
propulsion (2) ·
railway (2) ·
structure (1) ·
track (1) ·
training (1)
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