4 treff

Quartz crystals for electrical circuits : their design and manufacture
by Raymond A. Heising
Bok Engelsk 1946
Some measurements of short wave transmission
Heising, Raymond A.
Bok Engelsk 1926
Production of single sideband for trans-Atlantic radio telephony
Heising, Raymond A.
Bok Engelsk 1925
Printing telegraph by radio
Heising, Raymond A.
Bok Engelsk 1922