Electrically operated recording and reproducing machines for teaching and instruction and parts thereof namely microphones, loudspeakers, records and replacement parts.
Electrically operated recording and reproducing machines for teaching and instruction and parts thereof namely microphones, loudspeakers, records and replacement parts.
Electrically operated recording and reproducing machines for teaching ...
Country
CA
Status
All
Registered
Pending
Abandoned
Other
Owners
Dictaphone corporation
(a delaware corporation) (1)
