|
US1434026A
|
|
Plate holder
|
|
US1494810A
|
|
Motion-picture camera
|
|
US1420860A
|
|
Player roll
|
|
US1442299A
|
|
Sound record
|
|
US1423738A
|
|
Sheet-perforating machine
|
|
US1381508A
|
|
Fingering device for self-playing stringed instruments
|
|
US1399404A
|
|
Sound-box
|
|
US1376042A
|
|
Tone-arm construction
|
|
US1357655A
|
|
Cabinet-top-lifting device
|
|
US1371647A
|
|
Armature-winding device
|
|
US1361500A
|
|
Sound-modulating device
|
|
US1381507A
|
|
Phonograph control device
|
|
US1381506A
|
|
Phonograph control device
|
|
US1391855A
|
|
Wireless transmitting system
|
|
US1376041A
|
|
Brush-holder
|
|
US1423737A
|
|
Art of transmitting pictures and the like
|
|
US1479256A
|
|
Space current device
|
|
US1381849A
|
|
Art of producing moving pictures
|
|
US1416306A
|
|
Driving means for phonographs
|
|
US1370202A
|
|
Art of arranging music
|
