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GB262334A
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Improvements in or relating to double cinematograph projection apparatus
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GB262040A
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Means for attaching the intermittent sprocket of a cinematograph projection machine to its spindle
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GB243912A
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Improvements in or relating to cinematographic projection apparatus
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DE408562C
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Box cinema
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DE406122C
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Fire protection drum for cinema projection apparatus
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DE401099C
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Cinema tripod
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DE405082C
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Tripod head
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DE407335C
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Picture window for cinematograph
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GB221253A
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Improvements in optical projection apparatus
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DE393313C
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safety lock
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DE395036C
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Lock with pin tumblers and removable cylinder jacket
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DE404957C
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Pearl daylight wall
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DE324407C
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Electric bicycle lamp
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DE319094C
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Microscope with large object distances
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DE326367C
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Cinematographic recording apparatus
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DE397070C
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Lock with pin tumblers and removable cylinder jacket
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DE453824C
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Rotary cylinder lock
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DE369089C
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Double kinematograph
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DE376679C
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Twin cinema projector
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DE392176C
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Lock cylinder of a lock with pin tumblers
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