Inventor
JOEKEL ALFRED
DE4 patents
Patents
4 patentsUS4236299ADec 2, 1980
Method and device for winding spiral fins onto oval tubing
BALCKE DUERR AG16 citations71
US4194381AMar 25, 1980
Device for the cold working of heat exchanger tubing for the attachment of spiral fins
BALCKE DUERR AG12 citations69
US4103408AAug 1, 1978
Method for the cold working of heat exchanger tubing for the attachment of spiral fins
BALCKE DUERR AG8 citations69
US4107832AAug 22, 1978
Method for winding spiral fins onto oval tubing
BALCKE DUERR AG5 citations60