Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Arnold W. Ellis, Herbert Swim
Inventor: William A. Warriner
Inventor: William A. Warriner
Inventor: William A. Warriner
Inventor: Barrie John Machin
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Armando Valepiano, Sergio Valepiano
Inventor: Dorothy Jean Searles Bailey
Inventor: Gijsbert de Ruiter
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Walter H. Jessel, Jr., William E. Duffett
Inventor: Grace Y. Nakano
Inventor: Harry Wheatcroft
Inventor: Marie Louise Meilland
Inventor: Barrie John Machin
Inventor: Leonard H. Shoesmith