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Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4272685 |
Generating means |
Jun. 9, 1981 |
| 4272684 |
Optical beam-splitting arrangements on object side of a lens |
Jun. 9, 1981 |
| 4272683 |
Transport and storage vessel for radioactive materials |
Jun. 9, 1981 |
| 4272682 |
Specimen elevator for an ion milling machine |
Jun. 9, 1981 |
| 4272681 |
Method and apparatus for isotope-selectively exciting gaseous or vaporous uranium hexafluoride m... |
Jun. 9, 1981 |
| 4272680 |
Modular array radiation detector |
Jun. 9, 1981 |
| 4272679 |
Ultraviolet radiation sensor |
Jun. 9, 1981 |
| 4272678 |
Gamma ray camera using a channel amplifier |
Jun. 9, 1981 |
| 4272677 |
Method and apparatus for the automatic stabilization of drift in radiation measurements |
Jun. 9, 1981 |
| 4272676 |
Optical-pickup coordinatometer |
Jun. 9, 1981 |
| 4272675 |
Symbol processing system |
Jun. 9, 1981 |
| 4272674 |
Check digit calculator |
Jun. 9, 1981 |
| 4272673 |
Heating element |
Jun. 9, 1981 |
| 4272672 |
Aquarium heater |
Jun. 9, 1981 |
| 4272671 |
Temperature control system for electric surface heater |
Jun. 9, 1981 |
| 4272670 |
Furnace muffles and furnaces |
Jun. 9, 1981 |
| 4272669 |
Heater |
Jun. 9, 1981 |
| 4272668 |
Small round air stream heating unit |
Jun. 9, 1981 |
| 4272667 |
Electric fluid heating apparatus employing stackable heat transfer modules |
Jun. 9, 1981 |
| 4272666 |
Fusing rolls fixing unit for copying machine |
Jun. 9, 1981 |
| 4272665 |
Energy beam welding a gap of varying width |
Jun. 9, 1981 |
| 4272664 |
Mobile rail welding machine |
Jun. 9, 1981 |
| 4272663 |
Method and apparatus for cooking |
Jun. 9, 1981 |
| 4272662 |
Toggle switch with shaped wire spring contact |
Jun. 9, 1981 |
| 4272661 |
High speed vacuum interrupter |
Jun. 9, 1981 |
| 4272660 |
Vacuum operated switch |
Jun. 9, 1981 |
| 4272659 |
Hydraulic brake warning switch |
Jun. 9, 1981 |
| 4272658 |
Multi-contact rotary switch |
Jun. 9, 1981 |
| 4272657 |
Keyboard assembly for electronic musical instruments |
Jun. 9, 1981 |
| 4272656 |
Quasi-resistive battery feed for telephone circuits |
Jun. 9, 1981 |
| 4272655 |
Compact telephone set employing slidable actuated supervision switches |
Jun. 9, 1981 |
| 4272654 |
Acoustic transducer of improved construction |
Jun. 9, 1981 |
| 4272653 |
Loudspeaker and a method of producing the same |
Jun. 9, 1981 |
| 4272652 |
Moving coil type stereophonic pickup cartridge |
Jun. 9, 1981 |
| 4272651 |
Optical system having diode laser light source |
Jun. 9, 1981 |
| 4272650 |
Power supply system |
Jun. 9, 1981 |
| 4272649 |
Processor controlled sound synthesizer |
Jun. 9, 1981 |
| 4272648 |
Gain control apparatus for digital telephone line circuits |
Jun. 9, 1981 |
| 4272647 |
Speech aid apparatus |
Jun. 9, 1981 |
| 4272646 |
Bus conduit electrical distribution system |
Jun. 9, 1981 |
| 4272645 |
Elastomeric molded strain relief |
Jun. 9, 1981 |
| 4272644 |
Electronic hybrid circuit package |
Jun. 9, 1981 |
| 4272643 |
Fire resistant fitting |
Jun. 9, 1981 |
| 4272642 |
Gas-insulated high-voltage bushing with shield electrode embedded in an annular insulating body |
Jun. 9, 1981 |
| 4272641 |
Tandem junction amorphous silicon solar cells |
Jun. 9, 1981 |
| 4272640 |
Automatic sewage valve |
Jun. 9, 1981 |
| 4272639 |
Helically wound heater |
Jun. 9, 1981 |
| 4272638 |
Heater element supports for use with fibrous block insulations |
Jun. 9, 1981 |
| 4272637 |
Catalyst for oxidation of isobutylene |
Jun. 9, 1981 |
| 4272636 |
Chlorinated phenol mold release agent |
Jun. 9, 1981 |
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