|
US4361737A
|
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Base station microphones
|
|
US4065648A
|
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Microphone screen
|
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US4065134A
|
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Needle assemblies for phonograph pickup cartridges
|
|
US3909009A
|
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Tone arm and phonograph pickup assemblies
|
|
US3585317A
|
|
Cardioid microphone
|
|
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|
|
Microphone diaphragm assembly
|
|
US3423542A
|
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Tapered fingers for resonant peak damping in piezoelectric transducers
|
|
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|
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Phonograph pickup having free or operative transducer positions
|
|
US3311713A
|
|
Headband and cord sets for earphones
|
|
US3215439A
|
|
Compliant phonograph stylus mounting
|
|
US3278695A
|
|
Construction of earphones and microphones
|
|
GB1003330A
|
|
Phonograph pickup cartridge mounting
|
|
US3175828A
|
|
Phonograph pickup cartridge mounting
|
|
US2980811A
|
|
Ceramic transducer elements
|
|
US2931865A
|
|
Microphones
|
|
US3017467A
|
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Method of assembly of phonograph pickup cartridges
|
|
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|
|
Universal monaural-binaural phonograph pickup cartridge
|
|
US3007013A
|
|
Microphone construction
|
|
US3088741A
|
|
Apparatus for balancing the outputs of a stereophonic phonograph pickup cartridge
|
|
US3047674A
|
|
Recording and reproducing head for magnetic tape
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