|
DD256404A1
|
|
Method for switching test connections for connecting lines using the pulse dial
|
|
DD256406A1
|
|
Method for switching test connections for connecting lines using coded tone frequency signals
|
|
DD256407A1
|
|
Method for switching test connections for connecting lines using the impulse selection diagram
|
|
DD256405A1
|
|
Method for controlling testing devices for connection cables by means of coded tone-frequency signals
|
|
DD256942A1
|
|
Circuit arrangement for expanding the dynamic range load-linked semiconductor multi-element sensors
|
|
DD256023A1
|
|
Arrangement for contacting termination elements
|
|
DD256022A1
|
|
Arrangement for contacting termination elements
|
|
DD254680A1
|
|
Circuit arrangement for a character transmitter for analog switch labels in digital telephone transmission plant
|
|
DD254829A1
|
|
Circuit arrangement for an active high-pass filter of third order with cauer behavior
|
|
DD254830A1
|
|
Circuit arrangement for active low pass filters third order with cauer behavior
|
|
DD254098A1
|
|
Damping arrangement for detecting the frequency transition of piezoelectric sound transducers
|
|
DD254093A1
|
|
Circuit arrangement for preventing simultaneity reactions of controlled switching units in telephone distribution equipment
|
|
DD254097A1
|
|
Method for testing networks with binary elements
|
|
DD253793A1
|
|
Pantographers for slotted cables under water
|
|
DD253898A1
|
|
Support for slotted cables under water
|
|
DD253794A1
|
|
Sanding line to take power under water
|
|
DD253907A1
|
|
Method for turning on a multi frequency code select control circuit for testing devices for telephone participant connections
|
|
DD253712A1
|
|
Method for producing membrane groups for piezoelectric sound converters
|
|
DD253720A1
|
|
Method for electrically contacting two of separately insulated metal layers
|
|
DD256025A1
|
|
Wire cutting device for wrapping tools
|
