| 4602823 |
Portable collapsible wheels |
— |
1986-07-29 |
| 4465321 |
Compression loaded collapsible wheel |
— |
1984-08-14 |
| 4463797 |
Inhibiting shrinkage pipe formation of metal casting |
— |
1984-08-07 |
| 4398308 |
Energy conservation in shower bathing |
— |
1983-08-16 |
| 4398474 |
Insulating structure for high temperature devices |
— |
1983-08-16 |
| 4307939 |
Oscillating retroreflector |
— |
1981-12-29 |
| 4300247 |
Energy conservation in shower bathing |
— |
1981-11-17 |
| 4290475 |
Ingot casting |
— |
1981-09-22 |
| 4256919 |
Temperature confining devices and method |
— |
1981-03-17 |
| 4231772 |
Solar powered heat pump construction |
— |
1980-11-04 |
| 4199952 |
Modular solar powered heat pump |
— |
1980-04-29 |
| 4195820 |
Precise thermal processing apparatus |
— |
1980-04-01 |
| 4192646 |
Heat conservation in workpieces |
— |
1980-03-11 |
| 4188519 |
Process and apparatus for controllably exchanging heat between two bodies |
— |
1980-02-12 |
| 4187688 |
Solar powered intermittent cycle heat pump |
— |
1980-02-12 |