|
US1423517A
|
|
Laminated talking-machine record
|
|
US1469781A
|
|
Laminated phonograph record and method for producing same
|
|
US1522949A
|
|
Method of making sound records
|
|
US1522948A
|
|
Method of production of sound records
|
|
US1416342A
|
|
Sound record and method of producing the same
|
|
US1328371A
|
|
Record-surfacing and the production thereof
|
|
CA173360A
|
|
Sound record
|
|
US1345756A
|
|
Talking-machine
|
|
US1273342A
|
|
Talking-machine.
|
|
US1213468A
|
|
Sound-record.
|
|
US1185987A
|
|
Light and sound distributing apparatus.
|
|
US1183358A
|
|
Process of making sound-records.
|
