Gripper for installing and removing a sign holder

Details Gripper for installing and removing a sign holder Gripper for installing and removing a sign holder

1997-01-27

1998-10-13

Thompson, Martie

Tools and hardware

Other tools and implements

With relative movement of parts while performing function

0805

Patent

active

D03993973

REFERENCES:
patent: D234678 (1975-04-01), Jellinek
patent: D253088 (1979-10-01), Levin
patent: D297103 (1988-08-01), Parish, Sr.
patent: D335249 (1993-05-01), Hopkins
patent: D340392 (1993-10-01), Axelsson
patent: 3953065 (1976-04-01), Shannon, Jr.
patent: 3958318 (1976-05-01), Crosa
patent: 3972104 (1976-08-01), Partin et al.
patent: 4564165 (1986-01-01), Grant et al.
patent: 5188332 (1993-02-01), Callas
Sign-EEZ Publication--Callas Enterprises, Inc. (Date Unknown).

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