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Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4219110 |
Wafer probe apparatus with pneumatic wafer orienting mechanism |
Aug. 26, 1980 |
| 4219109 |
Oil pressure control means for an automatic transmission |
Aug. 26, 1980 |
| 4219108 |
Third rail system for track bound transport means |
Aug. 26, 1980 |
| 4219107 |
Speed control device for a heavy duty shaft |
Aug. 26, 1980 |
| 4219106 |
Brake shoe holding device for a spot-type disc brake |
Aug. 26, 1980 |
| 4219105 |
Disc brake and a noise-reducing spring for such a brake |
Aug. 26, 1980 |
| 4219104 |
Wheelchair lift device |
Aug. 26, 1980 |
| 4219103 |
Elevator platform structure |
Aug. 26, 1980 |
| 4219102 |
Metallic ladders |
Aug. 26, 1980 |
| 4219101 |
Acoustic space divider |
Aug. 26, 1980 |
| 4219100 |
Muffler for exhaust air or other gas |
Aug. 26, 1980 |
| 4219099 |
Acoustic reproduction transducer enclosure |
Aug. 26, 1980 |
| 4219098 |
Internal passive air release control apparatus in seismic air gun |
Aug. 26, 1980 |
| 4219097 |
External air release control in seismic air gun |
Aug. 26, 1980 |
| 4219096 |
Submergible marine seismic source |
Aug. 26, 1980 |
| 4219095 |
Acoustic transducer |
Aug. 26, 1980 |
| 4219094 |
Straddle crane apparatus |
Aug. 26, 1980 |
| 4219093 |
Vehicle steering assist |
Aug. 26, 1980 |
| 4219092 |
Automatic guidance apparatus |
Aug. 26, 1980 |
| 4219091 |
Transducer mounting |
Aug. 26, 1980 |
| 4219090 |
Weighing device |
Aug. 26, 1980 |
| 4219089 |
Electronic counting scale |
Aug. 26, 1980 |
| 4219088 |
Load indicator |
Aug. 26, 1980 |
| 4219087 |
Enlarged bore hole drilling method |
Aug. 26, 1980 |
| 4219086 |
Soil cultivating implements |
Aug. 26, 1980 |
| 4219085 |
Multirow sugar-beet harvester |
Aug. 26, 1980 |
| 4219084 |
Fire extinguishing apparatus having a slidable mass for a penetrator nozzle |
Aug. 26, 1980 |
| 4219083 |
Chemical process for backsurging fluid through well casing perforations |
Aug. 26, 1980 |
| 4219082 |
Lignosulfonate-formaldehyde condensation products as additives in oil recovery processes involvi... |
Aug. 26, 1980 |
| 4219081 |
Knockdown centralizer |
Aug. 26, 1980 |
| 4219080 |
Plate-type heat exchanger |
Aug. 26, 1980 |
| 4219079 |
Plate type condenser |
Aug. 26, 1980 |
| 4219078 |
Heat transfer surface for nucleate boiling |
Aug. 26, 1980 |
| 4219077 |
Multitubular heat exchanger used in a power plant |
Aug. 26, 1980 |
| 4219076 |
Heat transfer system |
Aug. 26, 1980 |
| 4219075 |
Heat storage device |
Aug. 26, 1980 |
| 4219074 |
Method and apparatus for low-loss storage of thermal energy and for low-loss withdrawal of the s... |
Aug. 26, 1980 |
| 4219073 |
Heat saver device |
Aug. 26, 1980 |
| 4219072 |
Phase change material heat exchanger |
Aug. 26, 1980 |
| 4219071 |
Air-conditioning system for railroad vehicles |
Aug. 26, 1980 |
| 4219070 |
Apparatus for withdrawing gas from heat exchanger having exchanger tubes and method of withdrawi... |
Aug. 26, 1980 |
| 4219069 |
Quick release for sector plate |
Aug. 26, 1980 |
| 4219068 |
Die casting machine |
Aug. 26, 1980 |
| 4219067 |
Anti-rattle curtain assembly |
Aug. 26, 1980 |
| 4219066 |
Pneumatic tire having a sidewall protect rib provided with an articular part or groove |
Aug. 26, 1980 |
| 4219065 |
Skidding and/or tire protector |
Aug. 26, 1980 |
| 4219064 |
Non-marring clip nut |
Aug. 26, 1980 |
| 4219063 |
Tool for holding a fastener to a driver therefor |
Aug. 26, 1980 |
| 4219062 |
Magnetic fastener-holding tool attachment |
Aug. 26, 1980 |
| 4219061 |
Miter chopper attachment for measuring picture frame molding |
Aug. 26, 1980 |
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