Building blocks set

Details Building blocks set Building blocks set

1978-03-30

1979-08-14

Pitrelli, John F.

46 16, 46 31, A63H 3304

Patent

active

041640918

ABSTRACT:
A set of building blocks is used for educational aid as well as decoration and readily assembled to form a tree-like structure, which comprises several building elements adapted to be coupled by plug and socket connectors to form a trunk as well as branching portion of a tree-like structure, and several base boards which can be connected side by side to construct a base as a ground member of the tree-like structure.

REFERENCES:
patent: 3442044 (1969-05-01), Quercetti
patent: 3589056 (1971-06-01), Glass et al.
patent: 3594940 (1971-07-01), Yonezawa
patent: 4074496 (1978-02-01), Fischer

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