FR1167071A
(en )
1958-11-20
High frequency coupling device
FR67831E
(en )
1958-03-24
Improvement of receptacles
CH349345A
(en )
1960-10-15
Semiconductor device for transmitting signals
CH335822A
(en )
1959-01-31
Gerät zur Reinigung der an Klosettschüsseln vorhandenen Hohlkehlen
FR1149097A
(en )
1957-12-19
Aerial improvements for micrometric waves
AT186746B
(en )
1956-09-10
Device for regulating the frequency of a converter
FR1133130A
(en )
1957-03-21
Distributor for turbine regulator
FR1161194A
(en )
1958-08-22
Bellows especially for artificial respiration
FR68029E
(en )
1958-03-27
Device for regulating the frequency of a converter unit
FR1138656A
(en )
1957-06-18
Improvements to hoppers
CH372709A
(en )
1963-10-31
Device for changing the frequency of an oscillator
AT200222B
(en )
1958-10-25
Frequency converter
FR1155557A
(en )
1958-05-06
Cable for high frequencies
FR1158714A
(en )
1958-06-18
Device for frequency modulation
CH346114A
(en )
1960-04-30
Locking device for regulating organs
FR1128157A
(en )
1957-01-03
Frequency modulator device
CH335426A
(en )
1958-12-31
Frequency modulator device
FR1168244A
(en )
1958-12-05
Improvements to frequency dividing circuits
AT191985B
(en )
1957-09-25
Large transformer
FR1176024A
(en )
1959-04-03
Transformer for pulsed signals
FR1155123A
(en )
1958-04-23
Amplitude modulators improvements
AT197431B
(en )
1958-04-25
Device for stepping down the frequency
FR1132111A
(en )
1957-03-05
Elastic strap ligature for clisses
FR1156632A
(en )
1958-05-19
Balanced frequency converter
AT194905B
(en )
1958-01-25
Circuit for preventing the transfer of an oscillation of a predetermined frequency from the output circuit to the input circuit of an amplifier