June 1920 Electrical and scientific apparatus Trademarks by day
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Electrical and scientific apparatus Trademarks filed in June 1920
MAGNAVOX
Filed: June 29, 1920
ELECTRICAL SOUND-AMPLIFYING DEVICES, [LOUD-SPEAKING TELEPHONES, MARINE TELEPHONES,] AIRCRAFT-TELEPHONES, [DESK-TELE PHONES…
Owned by: MAGNAVOX COMPANY THE MAGNAVOX COMPANY THE
Serial Number: 71134375
OILWELL
Filed: June 23, 1920
OIL-WELL RIGS, [ OIL-WELL DERRICKS, RIG PARTS, DERRICK PARTS, ] PORTABLE DRILLING-MACHINES, [ PORTABLE WELL-PULLING MACHINES…
Owned by: NATIONAL OILWELL VARCO, L.P.
Serial Number: 71134086
