CH271149A
(en)
|
|
Projectile.
|
CH237702A
(en)
|
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Electric selector.
|
CH257959A
(en)
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Motocultor.
|
CH225047A
(en)
|
|
Resistance.
|
FI19013A
(en)
|
|
Electron circuit with s.k. exponential characteristic
|
CH230478A
(en)
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Kötzerspulmaschine.
|
CH236848A
(en)
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Resistance switch.
|
DK61573C
(en)
|
|
Water-cooled Planrist.
|
CH235677A
(en)
|
|
Magnetron arrangement.
|
FI19039A
(en)
|
|
Exponential electron
|
CH235844A
(en)
|
|
Small circuit breaker with double break.
|
DK60419C
(en)
|
|
Ajlebeholder.
|
CH219678A
(en)
|
|
Inkware.
|
CH224065A
(en)
|
|
Spirometer.
|
CH218237A
(en)
|
|
Circuit with an electron tube.
|
CH225021A
(en)
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|
Ball-bearing.
|
CH226339A
(en)
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|
Magnetron.
|
CH227894A
(en)
|
|
Circuit arrangement with slope-controlled susceptance values.
|
DK60213C
(en)
|
|
Oven.
|
DK67764C
(en)
|
|
Variometer with air dielectric.
|
CH229509A
(en)
|
|
Circuit breaker.
|
DK65123C
(en)
|
|
Antioxidant.
|
DK61440C
(en)
|
|
Sliding variometer with sliding mass core.
|
DK60408C
(en)
|
|
Skudrigellaas.
|
DK63485C
(en)
|
|
Magasingrammofon.
|