Jigsaw puzzle with extra interlock

Details Jigsaw puzzle with extra interlock Jigsaw puzzle with extra interlock

1977-03-21

1978-04-11

Skogquist, Harland S.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

35 8R, 273157R, A63F 910

Patent

active

040831230

ABSTRACT:
This invention is a teaching aid for use by children and others in learning the association between mechanical items. It is characterized by two parts of a mechanical item which are capable of being connected together, being respectively connected to different portions of pieces of a jigsaw puzzle-type apparatus in such manner that when the jigsaw puzzle is correctly assembled, the matching mechanical elements will be in a position to be joined together, and in such manner that when all such items are correctly joined together the jigsaw puzzle will remain in an assembled configuration until the elements are disconnected.

REFERENCES:
patent: 2972820 (1961-02-01), Cano
Children's House, vol. 4, No. 4, Sept. 1970, pp. 16-19, "Generating the Child," by David Davis.
Creative Playthings Catalog rec'd., Sept. 1970, p. 18, "Junior Lock Box."
Sears-Roebuck Catalog, Fall-Winter 1963, p. 1227, "Ponderosa Pine Storm-Screen Doors."

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