ES176720A1
(en )
1947-03-01
A HIGH FREQUENCY AMPLIFIER APPARATUS
FR952475A
(en )
1949-11-17
Amplifier device for high frequency
ES180661A1
(en )
1948-01-01
A TIME INTERVAL MEASURING EQUIPMENT
ES175298A1
(en )
1946-11-16
A HIGH FREQUENCY APPARATUS
DK80632C
(en )
1956-03-05
Apparatus for use in a transmission system in which a periodic sensing of the amplitude of a signal wave is performed.
FR1011634A
(en )
1952-06-25
High frequency signal converter system
DK70587C
(en )
1950-02-06
Apparatus for measuring surface areas.
DK77064C
(en )
1954-02-08
Apparatus for stabilizing the frequency of a microwave signal source.
DK82704C
(en )
1957-04-23
Apparatus for generating a normal frequency.
DK72825C
(en )
1951-07-30
Apparatus for measuring phase differences.
DK75336C
(en )
1953-01-26
Apparatus for converting pulse modulation into amplitude variations.
DK66417C
(en )
1948-03-08
Apparatus for emptying silos.
DK82768C
(en )
1957-06-03
Apparatus for stabilizing the frequency of a microwave signal source.
DK85103C
(en )
1958-02-24
Apparatus for amplification of electric waves.
ES168249A1
(en )
1945-03-01
FREQUENCY DETERMINING APPARATUS
DK80156C
(en )
1955-11-21
Apparatus for amplifying centimeter waves.
DK76362C
(en )
1953-09-14
Apparatus for monitoring a frequency difference.
DK72286C
(en )
1951-03-19
Apparatus for halving a number of pulses.
DK66054C
(en )
1947-12-15
Apparatus for Testing Pavement Material.
DK73765C
(en )
1952-02-11
Apparatus for indicating a guidance plan.
DK68815C
(en )
1949-03-28
Apparatus for electrometric titration.
FR56159E
(en )
1952-09-18
Method for measuring and receiving frequency modulated currents
DK82705C
(en )
1957-04-23
Apparatus for refracting electromagnetic waves.
DK68913C
(en )
1949-04-11
Apparatus for testing paper bags.
DK82655C
(en )
1957-04-15
Apparatus for reducing the phase velocity of electromagnetic waves.