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Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4269513 |
Arrangement for sensing the surface of an object independent of the reflectance characteristics ... |
May. 26, 1981 |
| 4269512 |
Electro-optical position-monitoring apparatus with tracking detector |
May. 26, 1981 |
| 4269511 |
Apparatus and method for measuring the magnitude of polarization of light |
May. 26, 1981 |
| 4269510 |
Smoke detector |
May. 26, 1981 |
| 4269509 |
Photoacoustic Raman spectroscopy |
May. 26, 1981 |
| 4269508 |
Device for adjusting the azimuthal and inclination directions of a wave reflector |
May. 26, 1981 |
| 4269507 |
Method and apparatus for pulverizing solid materials with a grindstone and injecting particles t... |
May. 26, 1981 |
| 4269506 |
Apparatus for measuring the influence of physical parameters on the length of a path |
May. 26, 1981 |
| 4269505 |
Device for the projection printing of the masks of a mask set onto a semiconductor substrate |
May. 26, 1981 |
| 4269504 |
Pickoff device for copying machine |
May. 26, 1981 |
| 4269503 |
Toner cleaning apparatus |
May. 26, 1981 |
| 4269502 |
Electrophotographic copying apparatus for copying manuscripts without interruptions |
May. 26, 1981 |
| 4269501 |
Drum for an automatic photographic processing system |
May. 26, 1981 |
| 4269500 |
Trouble detecting system for electrophotographic copying machine |
May. 26, 1981 |
| 4269499 |
Two-piece quadripod for cameras |
May. 26, 1981 |
| 4269498 |
Accessory device for photographic camera |
May. 26, 1981 |
| 4269497 |
Lens barrel for both priorities or shutter speed priority mode automatic exposure system |
May. 26, 1981 |
| 4269496 |
Power supply circuit for camera |
May. 26, 1981 |
| 4269495 |
Camera with back-up shutter and provisions for recording data in conjunction with a primary imag... |
May. 26, 1981 |
| 4269494 |
Battery level warning device |
May. 26, 1981 |
| 4269493 |
Electromagnetic camera shutter control device |
May. 26, 1981 |
| 4269492 |
Photographic camera with single selector structure performing exposure-parameter adjustment and ... |
May. 26, 1981 |
| 4269491 |
Distance information judging circuit for focus detecting apparatus |
May. 26, 1981 |
| 4269490 |
Programmed shutter gamma switching circuit |
May. 26, 1981 |
| 4269489 |
Camera and error preventing circuit therefor |
May. 26, 1981 |
| 4269488 |
Flexible hinge for resiliently connecting the arms to the front portion of spectacles |
May. 26, 1981 |
| 4269487 |
Spectacle lens insert for aphakic refraction |
May. 26, 1981 |
| 4269486 |
Multi-axis movable mirror device |
May. 26, 1981 |
| 4269485 |
Method for focusing an objective lens of endoscope |
May. 26, 1981 |
| 4269484 |
Varifocal optical system |
May. 26, 1981 |
| 4269483 |
Electro-optical voltage measurement device |
May. 26, 1981 |
| 4269482 |
Simultaneous multi-beam optical modulation system |
May. 26, 1981 |
| 4269481 |
Multiple-cavity electro-optic tunable filter |
May. 26, 1981 |
| 4269480 |
Process and apparatus for displaying an image in front of an optical contrasting background |
May. 26, 1981 |
| 4269479 |
Mounting system for optical lens assembly |
May. 26, 1981 |
| 4269478 |
Constant-speed scanning lens system |
May. 26, 1981 |
| 4269477 |
Symmetrical objective |
May. 26, 1981 |
| 4269476 |
Helmet-mounted display system |
May. 26, 1981 |
| 4269475 |
Head-up displays |
May. 26, 1981 |
| 4269474 |
Wide-angle optical door viewer |
May. 26, 1981 |
| 4269473 |
Identification card with a hologram and a process for the production thereof |
May. 26, 1981 |
| 4269472 |
Electrical terminal |
May. 26, 1981 |
| 4269471 |
Electrical terminal for attachment to a contact bar |
May. 26, 1981 |
| 4269470 |
Modular electrical terminal board |
May. 26, 1981 |
| 4269469 |
Contact terminal connector |
May. 26, 1981 |
| 4269468 |
Electrical connector insulator |
May. 26, 1981 |
| 4269467 |
Electrical connector receptacle having molded conductors |
May. 26, 1981 |
| 4269466 |
Connector and strain relief for flat transmission cable |
May. 26, 1981 |
| 4269465 |
Splice connector for aluminum wire |
May. 26, 1981 |
| 4269464 |
Tilting terminal clamp |
May. 26, 1981 |
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