Details specially adapted for motion-picture projection (with film moving continuously through the gate G03B41/02)

Child Classifications

Navigate with arrow keys, Enter to open

• G03B 21/321 +3 CPC CPC only CPC only
• G03B 21/34 Change-over arrangements IPC+CPC Available in IPC and CPC
• G03B 21/38 Prolonged exhibition of single frame IPC+CPC Available in IPC and CPC
• G03B 21/40 Eliminating or reducing effect of flicker IPC+CPC Available in IPC and CPC
• G03B 21/42 Preventing damage to film due to abnormal operation of projector IPC+CPC Available in IPC and CPC
• G03B 21/43 Driving mechanisms IPC+CPC Available in IPC and CPC
• G03B 21/50 Control devices operated by the film strip during the run IPC+CPC Available in IPC and CPC