Cleaning card for time recorder

Details Cleaning card for time recorder Cleaning card for time recorder

1981-02-09

1982-11-02

Rubinson, G. Z.

Recorders

Record receivers and/or driving means therefor

15210R, 1525036, G01D 1524, A47L 100

Patent

active

043576150

ABSTRACT:
A cleaning card particularly for a time recorder which is formed with a large number of cleaning protrusions over the front and rear surfaces thereof, said cleaning protrusions being adapted to clean the front faces of the protective glasses for both the card detecting and code reading photoelectric sending and receiving elements which are located opposite to each other on the both sides of the cars passage in the time recorder.

REFERENCES:
patent: 1851811 (1932-03-01), Christie
patent: 3740759 (1973-06-01), McKeegan et al.
patent: 4065798 (1977-12-01), Sugisaki et al.

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