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BE421782A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE421757A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE356171A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE371364A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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US2102776A
(en)
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Sound recording apparatus
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BE434398A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE490849A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE392448A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE423894A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE462458A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE444993A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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FR2716997A1
(fr)
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Tambour pour système d'enregistrement et de lecture à bande magnétique.
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CH234384A
(fr)
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Procédé et appareil pour l'enregistrement de sons sur un support et support muni d'un enregistrement ainsi obtenu.
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CH168189A
(fr)
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Procédé d'enregistrement des sons et d'établissement de copies de cet enregistrement.
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BE471381A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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FR2484098A1
(fr)
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Obturateur rapide pour camera a fente
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BE426514A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE386633A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE362257A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE469253A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE395791A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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CH365128A
(fr)
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Appareil de commande de mouvement
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FR2458826A1
(en)
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Projector for stereoscopic view - has tilting mirror to adjust to provide viewing on integral screen or projection onto larger distant screen
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BE390207A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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BE561840A
(GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
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