|
US1208558A
|
|
Magazine film-holder for cameras.
|
|
US1107520A
|
|
Machine for building up designs on cylindrical printing-surfaces.
|
|
US1081922A
|
|
Projection apparatus.
|
|
US1051997A
|
|
Apparatus for transferring designs onto a cylindrical surface by photo-mechanical process for printing therefrom.
|
|
US1048968A
|
|
Index device for step and repeat and other machines.
|
|
US1043988A
|
|
Screen for optical projection purposes and method of making same.
|
|
US1057470A
|
|
Screen-mount for projection-machine work and similar purposes.
|
|
US1029297A
|
|
Means for mechanically focusing photographic lenses.
|
|
US1029296A
|
|
Means for mechanically focusing photographic lenses.
|
|
US1029295A
|
|
Automatic focusing apparatus for photographic lenses.
|
|
US1022039A
|
|
Blue-printing machine.
|
|
US1003774A
|
|
Stereopticon.
|
