Tandem swing

Details Tandem swing Tandem swing

2007-11-27

2007-11-27

Nguyen, Kien (Department: 3711)

Amusement devices

Swing

For plural occupants

C472S118000

Reexamination Certificate

active

11540425

ABSTRACT:
This is a swing by which two people can enjoy a swing without risk of colliding with each other on the swing. Because this device employs a spreader bar two people can swing at the same time and not collide

REFERENCES:
patent: 3615119 (1971-10-01), Irwin
patent: 3663016 (1972-05-01), Morris
patent: 4289310 (1981-09-01), Weakly
patent: 4417725 (1983-11-01), Van Horn
patent: D340275 (1993-10-01), Haun
patent: 5393268 (1995-02-01), Cunard et al.
patent: 5766084 (1998-06-01), Smith
patent: 6585319 (2003-07-01), Tseng

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