Electrical wave filters employing quartz crystals as elements

[1] CADY, 1929, Patent No. 17358

[2] The piezo-electric resonator [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1922, 10 (02): : 83 - 114

[3] Theory of longitudinal vibrations of viscous rods. [J]. PHYSICAL REVIEW, 1922, 19 (01): : 1 - 6

[4] CAMPBELL GA, 1922, B S T J NOV

[5] DYE DW, P PHYS SOC, V38, P399

[6] ESPENSCHIED, 1931, Patent No. 1795204

[7] GIEBE E, 1933, ANN PHYS, V18

[8] HARRISON JR, 1927, I R E

[9] JOHNSON KS, TRANMISSION CIRCUITS, P281

[10] JOHNSON KS, TRANMISSION CIRCUITS, P190

[1] CADY, 1929, Patent No. 17358

[2] The piezo-electric resonator [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1922, 10 (02): : 83 - 114

[3] Theory of longitudinal vibrations of viscous rods. [J]. PHYSICAL REVIEW, 1922, 19 (01): : 1 - 6

[4] CAMPBELL GA, 1922, B S T J NOV

[5] DYE DW, P PHYS SOC, V38, P399

[6] ESPENSCHIED, 1931, Patent No. 1795204

[7] GIEBE E, 1933, ANN PHYS, V18

[8] HARRISON JR, 1927, I R E

[9] JOHNSON KS, TRANMISSION CIRCUITS, P281

[10] JOHNSON KS, TRANMISSION CIRCUITS, P190