|
GB382308A
|
|
Improvements in or relating to combined sound record and picture films
|
|
GB378181A
|
|
Improvements in or relating to episcopic projectors
|
|
US1902907A
|
|
Episcopic projector
|
|
GB368082A
|
|
Improvements in or relating to light sensitive emulsions for photographic purposes for metal films
|
|
GB384290A
|
|
Illuminating device for episcopic film projection
|
|
GB384262A
|
|
Improvements in or relating to episcopic projection devices for use with metal films
|
|
GB363989A
|
|
A process for renewing used cinematograph films
|
|
GB363631A
|
|
Improved carrier for photographic and like images
|
|
GB351334A
|
|
Improvements in or relating to optical projection apparatus
|
|
CA315767A
|
|
Metallic film protection
|
