UFO achtige patententen:


* -> gedownload met referenties...

* US 2718364 Ernest Crabtree 
* US 2772057 John Fischer 
US 2876965 Homer Streib 
US 2912244 Otis Carr 
US 2927746 Walter Mellen 
US 2935275 Leonard Grayson 
US 2953320 Robert Parry 
US 2997254 Thomas Mulgrave 
US 3018068 Frost & Earl 
US 3020002 John Frost 
US 3020003 Frost & Williams 
US 3022963 Frost & Earl 
US 3024966 John Frost
US 3065935 Duberry/Frost/Earl 
US 3066890 Nathan Price 
US 3067967 Irwin Barr 
US 3123320 Eldon Slaughter 
US 3124323 John Frost 
US 3243146 Paul Clover 
US 3312425 Lennon & Varner 
US 3395876 Jacob Green 
US 3397853 William Richardson 
US 3410507 Paul Moller 
US 3432120 Efrain Guerrero 
US 3442469 Troy Davis 
US 3469802 Roberts & Alexander 
US 3514053 Gilbert McGuiness 
US 3519224 Boyd/Mallory/Skinner 
US 3750980 Samuel Edwards
US 3774865 Olympio Pinto 
US 3946970 Ben Blankenship 
US 4014483 Roderick MacNeil 
US 4193568 Norman Heuvel 
US 4214720 Edwin Desautel 
US 4269375 John Hickey 
US 4457476 Frank Andresevitz
US 4804156 Rodney Harmon 
US 4824048 Kyusik Kim 
US 4955962 Christian Mell 
US 5072892 Alfred Carrington 
US 5170963 August Beck 
US 5178344 Vaclav Dlouhy 
US 5203521 Terence Day 
US 5344100 Allan Jaikaran 
US 5351911 George Neumayr




References:

US1868143
US2448972
US2508673
US2628473
US2718364
US2836958
US2850250
US2927746
US2973166
US2997254
US3018068
US3020003
US3045951
US3276723
US3395876
US3519224
US3568955
US3699771
US3727401
US3774865
US3838835
US523055
US678700
US787245


US7201346
US4193568