|
BE462051A
(en0)
*
|
1944-11-21 |
|
|
|
|
BE476120A
(en0)
*
|
1945-01-23 |
|
|
|
|
US2447160A
(en)
*
|
1945-10-22 |
1948-08-17 |
Philips Lab Inc |
Piezoelectric apparatus
|
|
US2482661A
(en)
*
|
1946-08-15 |
1949-09-20 |
Rca Corp |
Crystal mounting
|
|
US2508232A
(en)
*
|
1947-02-13 |
1950-05-16 |
Reeves Hoffman Corp |
Holder for piezoelectric oscillators
|
|
US2484428A
(en)
*
|
1947-07-15 |
1949-10-11 |
Melvin L Smith |
Piezoelectric crystal mounting
|
|
US2481806A
(en)
*
|
1947-08-07 |
1949-09-13 |
John M Wolfskill |
Piezoelectric crystal holder
|
|
US2635199A
(en)
*
|
1948-01-08 |
1953-04-14 |
John M Wolfskill |
Piezoelectric crystal apparatus
|
|
US2656473A
(en)
*
|
1950-05-24 |
1953-10-20 |
Bell Telephone Labor Inc |
Crystal unit for use at high temperatures
|
|
US2824980A
(en)
*
|
1952-03-14 |
1958-02-25 |
Erie Resistor Corp |
Piezoelectric transducers
|
|
US2765765A
(en)
*
|
1952-09-03 |
1956-10-09 |
Robert R Bigler |
Apparatus for the manufacture of piezoelectric crystals
|
|
US2850651A
(en)
*
|
1954-03-02 |
1958-09-02 |
P R Hoffman Company |
Piezoelectric crystal support
|
|
US2894317A
(en)
*
|
1954-06-07 |
1959-07-14 |
Spence T Marks |
Method for constructing a barium titanate blast velocity gauge
|
|
US2824981A
(en)
*
|
1954-11-03 |
1958-02-25 |
Walter J Warden |
Piezoelectric crystal holder
|
|
US2824219A
(en)
*
|
1954-11-08 |
1958-02-18 |
Midland Mfg Co Inc |
Piezoelectric crystal assembly
|
|
US2852416A
(en)
*
|
1955-06-03 |
1958-09-16 |
Itt |
Method and apparatus for manufacturing travelling wave electron discharge devices
|
|
US2856549A
(en)
*
|
1955-06-06 |
1958-10-14 |
Int Standard Electric Corp |
Method of mounting piezo-electric crystals
|
|
US2972068A
(en)
*
|
1956-07-06 |
1961-02-14 |
Automation Instr Inc |
Uni-directional ultrasonic transducer
|
|
US3054004A
(en)
*
|
1957-06-24 |
1962-09-11 |
Vitro Corp Of America |
Piezoelectric crystal holder
|
|
GB848028A
(en)
*
|
1957-12-24 |
1960-09-14 |
Marconi Wireless Telegraph Co |
Improvements in or relating to piezo-electric crystal units
|
|
US2965773A
(en)
*
|
1957-12-31 |
1960-12-20 |
Hill Electronic Engineering An |
Crystal mounting structure with damping means
|
|
US3069572A
(en)
*
|
1958-12-02 |
1962-12-18 |
James Knights Company |
Piezoelectric device
|
|
DE1158127B
(de)
*
|
1959-02-26 |
1963-11-28 |
Kristallverarbeitung Neckarbis |
Bodenplatte mit Stromzufuehrungen fuer ein vakuumdichtes Quarzgefaess
|
|
US3162780A
(en)
*
|
1961-04-10 |
1964-12-22 |
Philips Corp |
Piezo-electrical quartz crystal in evacuated glass housings
|
|
US3232787A
(en)
*
|
1961-05-08 |
1966-02-01 |
Donald C Bennett |
Bistable magnetic film and method for making same
|
|
US3333122A
(en)
*
|
1964-01-09 |
1967-07-25 |
Motorola Inc |
Electrical device
|
|
US3317761A
(en)
*
|
1964-05-12 |
1967-05-02 |
Bell Telephone Labor Inc |
Resonant and antiresonant vibratory members attached to a crystal
|
|
US3340410A
(en)
*
|
1964-08-05 |
1967-09-05 |
Wave Lock Inc |
Piezoelectric crystal assembly
|
|
US3617331A
(en)
*
|
1964-08-25 |
1971-11-02 |
Optical Coating Laboratory Inc |
Method for manufacture of rotatable variable filter
|
|
US3676741A
(en)
*
|
1970-12-09 |
1972-07-11 |
Bell Telephone Labor Inc |
Semiconductor target structure for image converting device comprising an array of silver contacts having discontinuous nodular structure
|
|
US4284663A
(en)
*
|
1976-05-10 |
1981-08-18 |
Bell Telephone Laboratories, Incorporated |
Fabrication of optical waveguides by indiffusion of metals
|
|
US4060888A
(en)
*
|
1976-06-29 |
1977-12-06 |
Tyco Filters Division, Inc. |
Method of improving ohmic contact through high-resistance oxide film
|
|
DE8120939U1
(de)
*
|
1981-07-16 |
1981-11-26 |
SIEMENS AG AAAAA, 1000 Berlin und 8000 München |
Halte- und anschlussvorrichtung fuer einen scheibenfoermigen piezoelektrischen resonator
|
|
GB2132816B
(en)
*
|
1982-12-23 |
1987-09-03 |
Kung Chao Tung |
Quartz oscillators
|
|
US5283496A
(en)
*
|
1988-07-20 |
1994-02-01 |
Asahi Dempa Co., Ltd. |
Thickness shear crystal resonator and manufacturing method therefor
|
|
CN103368458B
(zh)
*
|
2012-11-30 |
2016-01-20 |
北京纳米能源与系统研究所 |
脉冲发电机和发电机组
|
|
US9941641B1
(en)
*
|
2017-06-01 |
2018-04-10 |
Amphenol East Asia Electronic Technology (Shen Zhen) Co., Ltd. |
Male connector
|