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
Valve timing control apparatus and method
Ultraviolet-curable inkjet ink set and colored board for outdoor use printed by using the ink set
Expedited memory drive self test
Display screen with animated graphical user interface
Stud for stud welding
Oil pressure control apparatus
Change point detection in causal modeling
  Randomly Featured Patents
Easy-locking buckle structure
Imaging apparatus including correction unit for scattered radiation
Maximized battery run-time in a parallel UPS system
Automatic cutting and crimping apparatus
Shield for a vibrator device
Balloon catheter
Method of preparing isomerization catalyst
Vanadium phosphorous mixed oxide
Rotary cutter shield
Dust guard for a scroll chuck