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US4443009A
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Pole vaulter's landing cushion
|
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US2686846A
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Magnetic transducer head
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US2801293A
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Magnetic transducer head
|
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US2595197A
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Safety device for magnetic record erasing
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US2718562A
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Erase head
|
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Magnetic conditioning device
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US2718561A
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Magnetic instrument shield system
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Motor drive
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Motion picture camera footage indicator drive
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Motion picture camera gear mesh adjustment
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Actuating mechanism for magnetic instrument movable elements
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Magnetic record body driving mechanism
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Erasing magnet assembly for magnetic recording and reproducing instruments
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Erasing magnet mounting and assembly
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Magnetic instrument mechanism head
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Magnetic instrument high-speed reel drive
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Magnetic recording or reproducing head mount
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GB679227A
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Improvements in or relating to a clutch assembly
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US2585725A
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Clutch device
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US2543656A
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Rotatable shaft position indexing device
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