Toy Building Element including a Rotatable Bushing
US 3,234,683. Application: 6 Apr 1962. Granted: 15 Feb 1966

Detail, pages 1—2 of 4.

Patent family:

Spielzeugbauelement. AT 238602B. 25 Feb 1965.

Spielzeugbauelement. CH 409739. 15 Oct 1966.

Spielzeugbauelement. DE 1478332. 4 Jun 1969.

Elément de jeu de construction. FR 1334260. 31 Dec 1963.

Improvements in or Relating to Toy Building Elements. GB 958433. 21 May1964.

Elément de jeu de construction. OA 134. 15 Jan 1966.

Toy Building Element including a Rotatable Bushing. US 3234683. 15 Feb 1966.