US3724844A
|
|
Exercise stand for bicycles
|
US3015153A
|
|
Method of making a heat regenerator
|
US2781667A
|
|
Record player
|
US2780767A
|
|
Circuit arrangement for converting a low voltage into a high direct voltage
|
US2775716A
|
|
Synchronous motor comprising an armature having permanent magnetic poles
|
US2770109A
|
|
Freezer and cooled chamber construction of a cold-gas refrigerator
|
US2775875A
|
|
Regenerator construction of a cold-gas refrigerator
|
US2775876A
|
|
Regenerator construction of a cold-gas refrigerator
|
US2764879A
|
|
Cooler construction in a hot-gas engine
|
US2781647A
|
|
Cold-gas refrigerator
|
US2755457A
|
|
Tuning indicator
|
US2784369A
|
|
Voltage divider
|
US2728834A
|
|
Resistive element for variable electrical resistor
|
US2816267A
|
|
Pulse-code modulation device
|
US2771751A
|
|
Gas-fractionating installation
|
US2776372A
|
|
Stabilized transistor oscillator
|
US2727830A
|
|
Method of applying light-diffusing layer to a glass surface
|
US2751525A
|
|
Permanent magnet
|
US2741715A
|
|
Stator for single-phase induction motor
|
US2784574A
|
|
Transversely flexible coupling
|