|
BE454723A
(https=)
|
|
|
|
US2681387A
(en)
|
|
Magnetic record reproducing system
|
|
US1565566A
(en)
|
|
Translating device
|
|
FR2501885A1
(fr)
|
|
Procede et dispositif de rodage d'instrument a cordes
|
|
Dimmick et al.
|
|
Extension of the frequency range of film recording and reproduction |
|
US1957512A
(en)
|
|
Phonograph reproducer with superaudible frequency
|
|
US2148024A
(en)
|
|
Bone audition apparatus
|
|
BE403262A
(https=)
|
|
|
|
BE395791A
(https=)
|
|
|
|
CH266407A
(fr)
|
|
Procédé pour obtenir une piste sonore de densité variable en push-pull sur un film photographique.
|
|
BE404441A
(https=)
|
|
|
|
JP2003107358A
(ja)
|
|
ソリッドイマージョンレンズを使用した光学装置
|
|
BE461858A
(https=)
|
|
|
|
BE454232A
(https=)
|
|
|
|
US1570490A
(en)
|
|
Sound-reproducing method and apparatus
|
|
BE341752A
(https=)
|
|
|
|
BE468289A
(https=)
|
|
|
|
BE396878A
(https=)
|
|
|
|
BE374244A
(https=)
|
|
|
|
BE432764A
(https=)
|
|
|
|
BE471381A
(https=)
|
|
|
|
CH462251A
(fr)
|
|
Dispositif détecteur à seuil des vibrations d'un haut-parleur
|
|
BE471816A
(https=)
|
|
|
|
BE514666A
(https=)
|
|
|
|
BE522051A
(https=)
|
|
|