|
US3271664A
(en)
|
1961-12-04 |
1966-09-06 |
Magnaflux Corp |
Combined leakage field and eddy current detection system
|
|
US3229198A
(en)
|
1962-09-28 |
1966-01-11 |
Hugo L Libby |
Eddy current nondestructive testing device for measuring multiple parameter variables of a metal sample
|
|
US3373856A
(en)
|
1966-01-18 |
1968-03-19 |
Canadian Patents Dev |
Method and apparatus for coin selection
|
|
GB1397083A
(en)
|
1971-05-24 |
1975-06-11 |
Mars Inc |
Coin selector utilizing inductive sensors
|
|
GB1452740A
(en)
|
1972-10-12 |
1976-10-13 |
Mars Inc |
Digital memory coin selector method and apparatus
|
|
DE2334570B1
(de)
*
|
1973-07-07 |
1975-03-06 |
Philips Patentverwaltung |
Abstimmbare Hochfrequenz-Eingangsschaltungsanordnung fuer einen Fernsehempfaenger
|
|
DE2549328A1
(de)
*
|
1975-11-04 |
1977-05-12 |
Klaus Ebinger |
Schaltungsanordnung zum erzeugen von frequenzen und deren mischprodukten
|
|
US4128158A
(en)
|
1976-07-22 |
1978-12-05 |
Coin Cop Co. |
Precision coin analyzer for numismatic application
|
|
GB2045498B
(en)
|
1979-03-30 |
1983-03-30 |
Mars Inc |
Coin testing apparatus
|
|
GR69124B
(https=)
|
1980-02-06 |
1982-05-03 |
Mars Inc |
|
|
DE3136348A1
(de)
*
|
1981-09-14 |
1983-03-24 |
Philips Patentverwaltung Gmbh, 2000 Hamburg |
Mikrowellen-oszillator in gegentaktschaltung
|
|
US4859969A
(en)
*
|
1983-06-13 |
1989-08-22 |
The United States Of America As Represented By The Secretary Of The Army |
Single transistor dual mode crystal oscillator(U)
|
|
US4678994A
(en)
*
|
1984-06-27 |
1987-07-07 |
Digital Products Corporation |
Methods and apparatus employing apparent resonant properties of thin conducting materials
|
|
JPS6327995A
(ja)
|
1986-07-21 |
1988-02-05 |
株式会社田村電機製作所 |
硬貨選別装置
|
|
US4898564A
(en)
|
1988-08-16 |
1990-02-06 |
Brink's Incorporated |
Apparatus for coin sorting and counting
|
|
GB2234619B
(en)
|
1989-07-28 |
1993-04-14 |
Mars Inc |
Coin validators
|
|
GB2235559A
(en)
|
1989-08-21 |
1991-03-06 |
Mars Inc |
Coin testing apparatus
|
|
US5231361A
(en)
*
|
1990-02-05 |
1993-07-27 |
Trw Inc. |
Voltage controlled push-push oscillator with parallel resonant tank circuits
|
|
US5038105A
(en)
*
|
1990-02-09 |
1991-08-06 |
Spectroscopy Imaging Systems Corporation |
Series/parallel double-tuned NMR coils
|
|
US5057778A
(en)
*
|
1990-03-29 |
1991-10-15 |
Spectroscopy Imaging Systems Corporation |
Double tuned nmr coils
|
|
US5167313A
(en)
|
1990-10-10 |
1992-12-01 |
Mars Incorporated |
Method and apparatus for improved coin, bill and other currency acceptance and slug or counterfeit rejection
|
|
US5166621A
(en)
*
|
1990-10-26 |
1992-11-24 |
Spectroscopy Imaging Systems Corporation |
Multi-resonant nmr coils
|
|
US5263197A
(en)
*
|
1991-09-20 |
1993-11-16 |
Matsushita Communication Industrial Corporation Of America |
Dual port oscillator for two-stage direct conversion receiver
|
|
US6075817A
(en)
*
|
1991-12-23 |
2000-06-13 |
Digital Compression Technology |
Compressive communication and storage system
|
|
GB2266804B
(en)
|
1992-05-06 |
1996-03-27 |
Mars Inc |
Coin validator
|
|
JPH07176952A
(ja)
*
|
1993-12-20 |
1995-07-14 |
Sony Corp |
発振器
|
|
GB2302625B
(en)
*
|
1995-06-22 |
1998-04-29 |
Univ Bristol |
Radio receiver and frequency generator
|
|
US6150816A
(en)
*
|
1997-02-25 |
2000-11-21 |
Advanced Imaging Research, Inc. |
Radio-frequency coil array for resonance analysis
|
|
US5751140A
(en)
*
|
1997-03-25 |
1998-05-12 |
Space Systems/Loreal, Inc. |
Voltage converter with battery discharge protection
|
|
KR100574414B1
(ko)
*
|
1997-07-09 |
2006-04-27 |
어드밴스드 에너지 인더스트리즈 인코포레이티드 |
주파수 선택형 가변출력 인덕터 히터 시스템 및 방법
|
|
US6081120A
(en)
*
|
1998-05-20 |
2000-06-27 |
Shen; Gary G |
Universal-multi-layered, multi-tuned RF probe for MRI and MRS
|
|
US6249190B1
(en)
*
|
1999-08-25 |
2001-06-19 |
Conexant Systems, Inc. |
Differential oscillator
|