| 5960072 |
Method and apparatus for altering the access format of telephone calls |
Lindsey D. Owen, Michael R. Rice |
1999-09-28 |
| 5513738 |
Coin handling system |
Mark E. Kerr |
1996-05-07 |
| 5483581 |
Method and apparatus for performing an automated collect call |
Lindsey D. Owen, Michael R. Rice |
1996-01-09 |
| 5441138 |
Coin handling system with an improved coin chute |
Mark E. Kerr |
1995-08-15 |
| 5400400 |
Pay telephone architecture |
Todd J. Betz |
1995-03-21 |
| 5388680 |
Coin handling system with an improved coin chute |
Mark E. Kerr |
1995-02-14 |
| 5367561 |
Cash access system and method of operation |
B. Michael Adler, Lindsey D. Owen |
1994-11-22 |
| 5319701 |
Method and apparatus for performing an automated collect call |
Lindsey D. Owen, Michael R. Rice |
1994-06-07 |
| D342251 |
Pay telephone unit |
Todd J. Betz, John A. Renfro, Ray Naeini |
1993-12-14 |
| 5255770 |
Coin handling system |
Mark E. Kerr |
1993-10-26 |
| 5131027 |
Short time validity storage |
Lindsey D. Owen, Michael R. Rice |
1992-07-14 |
| 5113433 |
Method and apparatus for altering the access format of telephone calls |
Lindsey D. Owen, Michael R. Rice |
1992-05-12 |
| 5093858 |
Method and apparatus for performing an automated collect call |
Lindsey D. Owen, Michael R. Rice |
1992-03-03 |
| 5090548 |
Coin handling system |
Mark E. Kerr |
1992-02-25 |
| 4933965 |
Short time validity storage of a billing account number at a local telecommunications station |
Lindsey D. Owen, Michael R. Rice |
1990-06-12 |
| 4933966 |
Method and apparatus for performing an automated collect call |
Lindsey D. Owen, Michael R. Rice |
1990-06-12 |
| 4920562 |
Automatic generation of billing records at a telephone paystation |
Lindsey D. Owen, Michael R. Rice |
1990-04-24 |
| 4920558 |
Method and apparatus for downloading speech files |
Lindsey D. Owen, Michael R. Rice |
1990-04-24 |
| 4908852 |
Method and apparatus for altering the access format of telephone calls |
Lindsey D. Owen, Michael R. Rice |
1990-03-13 |
| 4890317 |
Automatic validation of telephone account numbers |
Lindsey D. Owen, Michael R. Rice |
1989-12-26 |
| 4889162 |
Fluid control valve |
Haydn J. Newcombe |
1989-12-26 |
| 4889165 |
Water supply valves |
Haydn J. Newcombe |
1989-12-26 |