Building block toy set

Details Building block toy set Building block toy set

1996-11-15

1998-09-01

Hafer, Robert A.

Amusement devices: toys

Construction toy

446118, 446124, A63H 3304, A63H 3306, A63H 3308

Patent

active

058002391

ABSTRACT:
A toy building block set, that includes a plurality of building blocks each having a plurality of sides for interconnection with the sides of other building blocks; and at least one side of each building block having a semicircular-shaped channel formed therein for alignment with the semicircular-shaped channel of another building block to form a circular channel. In addition, there is a plurality of cylindrical rod-like members each for placement in one of the circular channels of the aligned building blocks and for extending from the aligned building blocks to support other building blocks in the toy building block set.

REFERENCES:
patent: 729918 (1903-06-01), Braun
patent: 1985992 (1935-01-01), Hayman
patent: 2440836 (1948-05-01), Turngren
patent: 2735146 (1956-02-01), Purviance
patent: 3157582 (1964-11-01), Babule et al.
patent: 3576936 (1971-05-01), Fischer
patent: 3863918 (1975-02-01), Kramer
patent: 3921330 (1975-11-01), Drieze
patent: 5064399 (1991-11-01), Klitsner et al.
patent: 5281185 (1994-01-01), Lee
patent: 5482491 (1996-01-01), Kichijyo

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