Inventor: van Leeuwen, Gijsbertus
Inventor: van Leeuwen, Gijsbertus
Inventor: Heil, Jacob Johannes
Inventor: Heil, Jacob Johannes
Inventor: Heil, Jacob Johannes
Inventor: Heil, Jacob Johannes
Inventor: Klemm, Siegfried
Inventor: Glicenstein, Leon
Inventor: Glicenstein, Leon
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Heil, Jacob Johannes
Inventor: Heil, Jacob Johannes
Inventor: Heil, Jacob Johannes
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.
Inventor: Jessel, Jr., Walter H.