|
US2742835A
|
|
Camera take-up and shutter and interlock therebetween
|
|
US2890635A
|
|
Roll film camera
|
|
US2931282A
|
|
Camera
|
|
US3020341A
|
|
Stereoscopic television
|
|
US2750444A
|
|
Combined slide and card projection apparatus for television
|
|
US2745901A
|
|
Television apparatus and optical system
|
|
US2687259A
|
|
Control and indicator apparatus for reel-wound strip material
|
|
US2704008A
|
|
Prefocused slide and card holder for television projectors
|
|
US2730565A
|
|
Production of composite live action and scenic effects for television
|
|
US2659653A
|
|
Record tape magazine
|
|
US2681950A
|
|
Transducing apparatus and magazine usable therewith
|
|
US2584155A
|
|
Fader for radio receiving or other apparatus
|
|
US2640104A
|
|
Volume control
|
|
US2610904A
|
|
Record magazine
|
|
US2661162A
|
|
Driving and locking means for apparatus having removable magazine
|
|
US2584734A
|
|
Control mechanism
|
|
US2584733A
|
|
Magazine having spool rotation inhibiting means
|
|
US2709636A
|
|
Listener preference registering and recording
|
|
US2535514A
|
|
Intermittent grip positioning apparatus for control cams
|
|
US2643552A
|
|
Control cam and apparatus for positioning the same
|
