Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Preset counter apparatus for copying machines and the like










Image Number 3 for United States Patent #4491827.

The present invention provides a preset counter apparatus for a copying machine wherein input keys are capable of independently controlling the numerical value of the number of copies to be made and displayed. Thus, an operator can activate one key to change the digit positions of units and another key to change the digit position of tens. The control of the number of copies to be made is specifically designed to facilitate operator use and to avoid operator errors. Simultaneous activation of more than one key prevents any change in any values in both the units and tens positions.








 
 
  Recently Added Patents
Avalanche photo diode and method of manufacturing the same
Pelvic registration device for medical navigation
Dry-cooling unit with gravity-assisted coolant flow
Image forming apparatus, information processing method, and storage medium for generating screen information
Business card assembly
Linerless labels
Markers of acute myeloid leukemia stem cells
  Randomly Featured Patents
Liquid crystal display element, method of manufacturing the element, and electronic paper having the element
Electrical plug housing
Door for pyrolytic range
Handle
Method and apparatus for conversion of sound signals into light
Drilling fluids made from solid, free-flowing, continuously-made, water dispersible PVA-aldehyde reaction product
Organic derivatives of tellurium and selenium
CRT test system
Method and apparatus for managing complex presentation objects using globally-unique identifiers
Dry powder injector for industrial production of carbon single walled nanotubes (SWNTs)