Reminder apparatus

Details Reminder apparatus Reminder apparatus

1990-06-29

1991-06-18

Miska, Vit W.

Horology: time measuring systems or devices

Combined with disparate device

368 62, 70434, 340539, 340542, G04B 4700, E05B 3904

Patent

active

050254260

ABSTRACT:
Reminder apparatus to be carried by a user with a key constructed to remind the user as to the last operation in which the key was used with respect to a lock. The key includes an operation sensor which stores the time of the last key operation, and a display which, upon manual operation of the key, displays the time of the last key operation.

REFERENCES:
patent: 4641125 (1987-02-01), Pesa
patent: 4675566 (1987-06-01), Narcisse
patent: 4769765 (1988-09-01), Green
patent: 4785291 (1988-11-01), Hawthorne
patent: 4924206 (1990-05-01), Ayers
patent: 4945341 (1990-07-01), Buttimer

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