DODUCO
Filed: October 11, 1960
REFINED PRECIOUS METAL IN BAR, BLOCK OR ROD FORM
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 72106190
HELIOCHROME D
Filed: October 11, 1960
PRECIOUS METAL POWDER
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 72106192
SILARGON
Filed: October 11, 1960
ELECTRICAL CONTACTS AND PARTS THEREOF
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 72106193
AUROMAL
Filed: October 16, 1961
BRONZE POWDER, BURNISHED GOLD, PRECIOUS METALS
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 72129929
ARGONOR
Filed: October 16, 1961
BRONZE POWDER, BURNISHED GOLD, PRECIOUS METALS
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 72129930
DODURIT
Filed: April 9, 1976
CONTACTS FOR ELECTRICAL SWITCHES, CONTACTS OF CADMIUM OXIDE
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 73083353
DD
Filed: November 10, 1976
ELECTRICAL CONTACTS, ELECTRICAL SLIDING CONTACTS OR BRUSHES, ELECTRICAL CURRENT-BREAKING CONTACTS, AND CONTACT ELEMENTS…
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 73106064
FULMIDUR-L
Filed: November 12, 1976
ELECTRICAL CONTACT MEMBERS AND PARTS
Owned by: DR. EUGEN DURRWACHTER, DODUCO
Serial Number: 73106459
