CH319868A
(en )
1957-03-15
Pest control methods
CH328569A
(en )
1958-03-15
Cooling method and equipment for its implementation
CH320954A
(en )
1957-04-15
Method and circuit for compensating for changes in cathode emission in tube amplifiers
CH354488A
(en )
1961-05-31
Method and device for photoelectric amplification
FR1087866A
(en )
1955-03-01
Gradient contrast correction and high frequency loss compensation circuits
AT180973B
(en )
1955-02-10
Procedure for the indication of earth faults in double lines
AT189027B
(en )
1957-02-25
Equipment and method for performing arc welds
AT180338B
(en )
1954-11-25
Cathode for an electric discharge tube and method for producing this cathode
AT184949B
(en )
1956-03-10
Procedure for reducing noise in radio equipment
AT176612B
(en )
1953-11-10
Electrode component and method for its manufacture
AT199929B
(en )
1958-10-10
Methods and devices for avoiding hailstorms
AT189641B
(en )
1957-04-25
Procedure for avoiding corrugation on rails
AT180308B
(en )
1954-11-25
Method and circuit arrangement for preventing acoustic feedback in telephone subscriber amplifiers
AT183637B
(en )
1955-10-25
Method of making mayonnaise
AT180095B
(en )
1954-11-10
Method and circuit arrangement for recording diagrams of frequency-dependent quantities
CH341573A
(en )
1959-10-15
Method and circuit arrangement for the precise setting of the anode-cathode distance in the manufacture of gas discharge devices
CH324090A
(en )
1957-08-31
Procedure for securing the transmission of message pulse groups
AT177439B
(en )
1954-01-25
Process for hardening rail ends
CH370404A
(en )
1963-07-15
Method of making steroids
CH331347A
(en )
1958-07-15
Method for sealing vessels made of electrolyte copper for electron tubes
AT186906B
(en )
1956-09-25
Method of preventing peeling damage
DK83962C
(en )
1957-11-25
Apparatus for delayed transmission of voltage jumps and electron tubes for use in the apparatus.
FR1057520A
(en )
1954-03-09
Improvement in fluorescent tubes
AT178383B
(en )
1954-05-10
Method and circuit arrangement for disabling voters
AT195918B
(en )
1958-02-25
Process for the conversion of metal oxyalkylene