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Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4087665 |
Switching system |
May. 2, 1978 |
| 4087664 |
Hybrid power circuit breaker |
May. 2, 1978 |
| 4087663 |
Liquid level contents indicators for vehicle hydraulic systems |
May. 2, 1978 |
| 4087662 |
Axial torsion pressure transducer |
May. 2, 1978 |
| 4087661 |
Switch enclosure for hazardous environment having cover removal interlocking defeater assembly |
May. 2, 1978 |
| 4087660 |
Magnetic card reader |
May. 2, 1978 |
| 4087659 |
Tamperproof handset for railroad applications |
May. 2, 1978 |
| 4087658 |
Apparatus and method for determining frequencies for system maximum and minimum immittances |
May. 2, 1978 |
| 4087657 |
Testing of inductively loaded transmission lines for correct loading |
May. 2, 1978 |
| 4087656 |
Testing of inductively loaded transmission lines for correct loading |
May. 2, 1978 |
| 4087655 |
Cable terminating and testing unit |
May. 2, 1978 |
| 4087654 |
Echo canceller for two-wire full duplex data transmission |
May. 2, 1978 |
| 4087653 |
Sound attenuating earcup assembly provided with receivers and contact microphone |
May. 2, 1978 |
| 4087652 |
Microphone switch key |
May. 2, 1978 |
| 4087651 |
Optical sound recording system with inversely polarized sound signals |
May. 2, 1978 |
| 4087650 |
Column and lever construction for a charactered telephone |
May. 2, 1978 |
| 4087649 |
Pulse counting circuit |
May. 2, 1978 |
| 4087648 |
Modular connector for switching frame |
May. 2, 1978 |
| 4087647 |
Circuit for supplying direct current to telephone station sets |
May. 2, 1978 |
| 4087646 |
Dual mode telephone subscriber loop current detector |
May. 2, 1978 |
| 4087645 |
Telephone switching system |
May. 2, 1978 |
| 4087644 |
Dial impulse relay circuit |
May. 2, 1978 |
| 4087643 |
Time division multiplexed PABX communication switching system |
May. 2, 1978 |
| 4087642 |
Digital data communication system |
May. 2, 1978 |
| 4087641 |
Noise limiting circuit for FM stereo receiver |
May. 2, 1978 |
| 4087640 |
Data input control system |
May. 2, 1978 |
| 4087639 |
Amplitude modulated telephone carrier systems |
May. 2, 1978 |
| 4087638 |
DTMF Communication system |
May. 2, 1978 |
| 4087637 |
Pacer pulse width signaling system for telephonic communication |
May. 2, 1978 |
| 4087636 |
Transmit-receive circuit changing switch system |
May. 2, 1978 |
| 4087635 |
Method of and system for carrying out calculations by means of a telephone set |
May. 2, 1978 |
| 4087634 |
Dual sound track sensor and calibration strip therefor |
May. 2, 1978 |
| 4087633 |
Dereverberation system |
May. 2, 1978 |
| 4087632 |
Speech recognition system |
May. 2, 1978 |
| 4087631 |
Projected sound localization headphone apparatus |
May. 2, 1978 |
| 4087630 |
Continuous speech recognition apparatus |
May. 2, 1978 |
| 4087629 |
Binaural sound reproducing system with acoustic reverberation unit |
May. 2, 1978 |
| 4087628 |
Carrier lock detector |
May. 2, 1978 |
| 4087627 |
Clock regenerator comprising a reversible shift register and a controllable frequency divider |
May. 2, 1978 |
| 4087626 |
Scrambler and unscrambler for serial data |
May. 2, 1978 |
| 4087625 |
Capacitive two dimensional tablet with single conductive layer |
May. 2, 1978 |
| 4087624 |
Fire shield for electrical box |
May. 2, 1978 |
| 4087623 |
Catalyst recovery process |
May. 2, 1978 |
| 4087622 |
Method of producing vinyl acetate |
May. 2, 1978 |
| 4087621 |
7-{3-Hydroxy-2.beta.-[4-hydroxy-4-(lower alkyl)-trans-1-octen-1-yl]-5-oxocyclopent-1.alpha.-yl}h... |
May. 2, 1978 |
| 4087620 |
15-Cycloalkyl-prostaglandin derivatives |
May. 2, 1978 |
| 4087619 |
Amine containing antioxidants |
May. 2, 1978 |
| 4087618 |
Inter-m-phenylene-13,14-didehydro-PE.sub.1 compounds 2 |
May. 2, 1978 |
| 4087617 |
Inter-M-phenylene-13,14-didehydro-PGF.sub.1 compounds |
May. 2, 1978 |
| 4087616 |
16-Phenoxy prostaglandin A2 analogs |
May. 2, 1978 |
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