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Browse by Date |
| Patent Number |
Title Of Patent |
Date Issued |
| 4229127 |
Boring bar |
Oct. 21, 1980 |
| 4229126 |
Machines for tapping nuts |
Oct. 21, 1980 |
| 4229125 |
Apparatus for separating objects having a tendency to hitch to each other |
Oct. 21, 1980 |
| 4229124 |
Automatic roof bolting system for mines |
Oct. 21, 1980 |
| 4229123 |
Inclined retaining wall and element therefor |
Oct. 21, 1980 |
| 4229122 |
Hole filling and sealing method and apparatus |
Oct. 21, 1980 |
| 4229121 |
Concrete removal apparatus |
Oct. 21, 1980 |
| 4229120 |
Submarine pipeline alignment rig |
Oct. 21, 1980 |
| 4229119 |
Liftable and collapsible barrage |
Oct. 21, 1980 |
| 4229118 |
Screed support |
Oct. 21, 1980 |
| 4229117 |
Apparatus for securing a metal hoop onto a metal rim |
Oct. 21, 1980 |
| 4229116 |
Liquid soap dispenser and brush combination |
Oct. 21, 1980 |
| 4229115 |
Nib for a writing instrument |
Oct. 21, 1980 |
| 4229114 |
Mechanism for operator-replaceable printhead |
Oct. 21, 1980 |
| 4229113 |
Shared document feed station |
Oct. 21, 1980 |
| 4229112 |
Random stuffer ribbon cartridge with improved ribbon exit control |
Oct. 21, 1980 |
| 4229111 |
Feed mechanism for marking machine |
Oct. 21, 1980 |
| 4229110 |
Mixing machine with wedge-shaped or ploughshare-like mixing tools |
Oct. 21, 1980 |
| 4229109 |
System for producing bituminous paving mixtures |
Oct. 21, 1980 |
| 4229108 |
Optical densitometer |
Oct. 21, 1980 |
| 4229107 |
Optical densitometer |
Oct. 21, 1980 |
| 4229106 |
Electromagnetic wave ring resonator |
Oct. 21, 1980 |
| 4229105 |
Sensitive measuring cell for a differential refractometer of the interference type |
Oct. 21, 1980 |
| 4229104 |
Mixing cuvette |
Oct. 21, 1980 |
| 4229103 |
Apparatus for determining off-aim during firing simulation |
Oct. 21, 1980 |
| 4229102 |
Method and apparatus for balancing out disturbances in distance measuring systems |
Oct. 21, 1980 |
| 4229101 |
Duplex/simplex precollation copying system |
Oct. 21, 1980 |
| 4229100 |
Automatic copy recovery |
Oct. 21, 1980 |
| 4229099 |
Method and apparatus for burning or dodging preselected portions of an image formed on photograp... |
Oct. 21, 1980 |
| 4229098 |
Photographic enlarger for producing giant-size prints |
Oct. 21, 1980 |
| 4229097 |
Apparatus for the photographic reproduction of transparent documents |
Oct. 21, 1980 |
| 4229096 |
Countdown and start mechanism for an electrostatic copier |
Oct. 21, 1980 |
| 4229095 |
Electro-optical color imaging apparatus |
Oct. 21, 1980 |
| 4229094 |
Camera with transversely displaceable objective |
Oct. 21, 1980 |
| 4229093 |
Control device in a shutter for a camera |
Oct. 21, 1980 |
| 4229092 |
Distance indicator for camera |
Oct. 21, 1980 |
| 4229091 |
Motor drive device for a camera |
Oct. 21, 1980 |
| 4229090 |
Film pack for small format film sheets |
Oct. 21, 1980 |
| 4229089 |
Automatic focusing device for camera |
Oct. 21, 1980 |
| 4229088 |
Exposure time controlling system |
Oct. 21, 1980 |
| 4229087 |
Focusing optical system for single-lens reflex |
Oct. 21, 1980 |
| 4229086 |
Photosensitive recorder providing linguistic characters |
Oct. 21, 1980 |
| 4229085 |
Film reader |
Oct. 21, 1980 |
| 4229084 |
Transparency cassette and viewer or projector |
Oct. 21, 1980 |
| 4229083 |
Two speed loop control arrangement |
Oct. 21, 1980 |
| 4229082 |
Selective optical filter |
Oct. 21, 1980 |
| 4229081 |
Electro-mechanical image converter |
Oct. 21, 1980 |
| 4229080 |
Additional electrode of electrochromic display and refreshing method for the same |
Oct. 21, 1980 |
| 4229079 |
Electro-optic modulator with improved acousto-optic suppression, heat transfer and mechanical su... |
Oct. 21, 1980 |
| 4229078 |
Hydro-optical modulator for modulating transmission of radiation |
Oct. 21, 1980 |
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