|
US2249589A
|
|
Range finder
|
|
US2057549A
|
|
Range finder
|
|
US1878565A
|
|
Intaglio printing
|
|
US1878564A
|
|
Doctor cleaning device
|
|
US1833767A
|
|
Doctor cleaning device
|
|
US1514947A
|
|
Sheet-feeding device
|
|
US1562133A
|
|
Front-wheel brake for automobiles
|
|
US1543490A
|
|
Sheet-separating machine
|
|
US1374130A
|
|
Sheet-feeding machine
|
|
US1285875A
|
|
Electroplating device.
|
|
CA183807A
|
|
Camera mechanism
|
|
US1374131A
|
|
Automatic delivery for die-presses
|
|
US1209098A
|
|
Method of printing.
|
|
US1291337A
|
|
Apparatus for and method of plating with metal.
|
|
US1238474A
|
|
Focusing device for cameras.
|
|
US1166032A
|
|
Focusing device for cameras.
|
|
US1255263A
|
|
Counter for intaglio-presses.
|
|
US1209097A
|
|
Apparatus for printing.
|
|
US1238473A
|
|
Combined finding and focusing mechanism for cameras.
|
