Plug-in counter with cost reduction

Details Plug-in counter with cost reduction Plug-in counter with cost reduction

1978-02-06

1979-04-17

Thesz, Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92C, 235 92SB, 235 92AC, 235 92R, G06M 312, G06B 2706

Patent

active

041502833

ABSTRACT:
A plug-in counter system for recording the use of an associated business machine and having a plug-in counter unit for each user and a receptacle unit for individually inserting each counter unit therein, the receptacle unit and each counter unit having magnetic couplings for magnetically coupling an electromagnet of the receptacle unit to an inserted counter unit for indexing the counter unit with the electromagnet.

REFERENCES:
patent: 3120602 (1964-02-01), Lagarde
patent: 3427441 (1969-02-01), Swords
patent: 3551652 (1970-12-01), Faude
patent: 3670924 (1972-06-01), Asper
patent: 3719805 (1973-03-01), Takeotano
patent: 3779357 (1973-12-01), Haller et al.
patent: 3872282 (1975-03-01), Long
patent: 3997873 (1976-12-01), Thorton

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