Shield device for pushbutton telephone

Details Shield device for pushbutton telephone Shield device for pushbutton telephone

1988-07-21

1990-09-25

Ng, Jin F.

Telephonic communications

Terminal accessory or auxiliary equipment

Locking device

379433, H04M 166

Patent

active

049598589

ABSTRACT:
A shield device installable on a telephone handset to overlie the pushbuttons, thereby preventing unauthorized persons from making outgoing calls. The shield device comprises a flexible strap that tightly encircles a mid area of the handset to maintain the shield in place. A keylock is incorporated into the shield device.

REFERENCES:
patent: 3899647 (1975-08-01), Nachsi et al.
patent: 3965310 (1976-06-01), Willy
patent: 4028508 (1977-06-01), Hall
patent: 4057697 (1977-11-01), Addoo
patent: 4081630 (1978-04-01), Washburn et al.

Affiliated with

Also associated with

Rating

Shield device for pushbutton telephone does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shield device for pushbutton telephone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shield device for pushbutton telephone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-333674