Electrical hand tool device

Details Electrical hand tool device Electrical hand tool device

2005-03-29

2005-03-29

Nguyen, George (Department: 3723)

Abrading

Precision device or process - or with condition responsive...

Computer controlled

C451S358000, C451S359000, C340S005600

Reexamination Certificate

active

06872121

ABSTRACT:
An electrical hand tool device (2) comprises a control electronics (8) and a transmitter and receiver (10) which is responsive in a wireless and contact-free fashion, and with a storage medium (12) in which an authorization code is stored, wherein an operation locking state and an operation release state can be differentiated, and with an external transmitter and receiver means (16) which is accommodated in a separate portable device (4), wherein communication with the transmitter and receiver means (10) of the electrical hand tool device can be produced in a defined fashion through actuation of the external transmitter and receiver means (16) to change the operation state, and communication is provided only to change the operation state and optionally to change the authorization code.

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