175962 ⎘
Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor
Sub-classes:Indoor-outdoor projector
#2Pairing of components in a direct current distributed power generation system
#3Pairing of components in a direct current distributed power generation system
#4Pairing of components in a direct current distributed power generation system
#5Recording tape cartridge and method of manufacturing said cartridge
#6Splicing tape for attaching a leader tape to data tape