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BE400140A
(instruction)
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US2664758A
(en)
|
|
Mechanical drive
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US3749827A
(en)
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Endless non-metallic belt for intermittently moving a transducer head transversely across a rotary magnetic disc
|
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US2047733A
(en)
|
|
Constant speed drive
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|
US2118347A
(en)
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|
Mechanical sound recording apparatus
|
|
FR2489461A1
(fr)
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Mecanisme de commande a oscillateur variable
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US2692141A
(en)
|
|
Constant linear speed phonographic apparatus
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|
US2808268A
(en)
|
|
Sound translating apparatus
|
|
US1952359A
(en)
|
|
Phonographic apparatus and phonographic record
|
|
CH174127A
(fr)
|
|
Dispositif pour transformer une vitesse angulaire constante en une vitesse linéaire constante.
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|
US2049821A
(en)
|
|
Sound record and sound recording and reproducing means
|
|
CN218751901U
(zh)
|
|
卷带收料装置
|
|
JPH0142864Y2
(instruction)
|
|
|
|
US3183729A
(en)
|
|
Variable speed transmission
|
|
CN212554048U
(zh)
|
|
一种用于霍尔传感器外壳的加工设备
|
|
CN213498076U
(zh)
|
|
一种可旋转定位式分度盘
|
|
US2035287A
(en)
|
|
Talking machine
|
|
BE498314A
(instruction)
|
|
|
|
CH167225A
(fr)
|
|
Dispositif enregistreur pour machine parlante à disque phonographique.
|
|
SU399906A1
(ru)
|
|
Прибор для демонстрации колебательных процессов систем
|
|
US873013A
(en)
|
|
Phonograph.
|
|
US2031817A
(en)
|
|
Film driving apparatus
|
|
SU806263A1
(ru)
|
|
Устройство дл резки неповоротныхТРуб
|
|
BE492319A
(instruction)
|
|
|
|
US936266A
(en)
|
|
Phonograph.
|