Inventor: Holtkamp, Jr., Reinhold
Inventor: Mak, Niels Johannes Cornelis
Inventor: Mak, Niels Johannes Cornelis
Inventor: Mak, Niels Johannes Cornelis
Inventor: Mak, Niels Johannes Cornelis
Inventor: Warren, Andrew Geoffrey Fiennes, Spaans, Jacobus Petrus
Inventor: Warren, Andrew G. F., Spaans, Jacobus P.
Inventor: Mak, Niels Johannes Cornelis
Inventor: Mak, Niels Johannes Cornelis
Inventor: Mak, Niels Johannes Cornelis
Inventor: Mak, Niels Johannes Cornelis
Inventor: Mak, Niels Johannes Cornelis
Inventor: Randag, Cecilius Jan-Jochem
Inventor: Mak, Niels Johannes Cornelis
Inventor: Randag, Cecilius Jan-Jochem