Cleaning card for time recorder

A cleaning device for cleaning by sliding surface contact therewith opposing protective transparent covers in a time recorder by insertion in longitudinal direction into a card passage sized to receive time cards of given dimensions, said protective transparent covers covering card detecting and code reading photoelectric sending and receiving elements on opposing sides of said passage, said device comprising:

• a cleaning card having front and rear surfaces and having dimensions approximately equal to said given dimensions;
• said card having a series of resilient cleaning protrusions on both said front surface and said rear surface, said cleaning protrusions being equally spaced in rows and columns, said columns extending at an angle of inclination to said longitudinal direction, whereby said cleaning protrusions slidingly contact and clean said covers on both of said opposing sides of said passage when said cleaning card is longitudinally inserted into said passage.