Building block

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a building block showing my new design.

FIG. 2 is a front view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
D230269 February 1974 Shuey
2577170 December 1951 Walters
2858463 October 1958 Koda et al.
3641983 February 1972 Keen et al.
3838535 October 1974 Larws
Foreign Patent Documents
1,509,003 December 1967 FR
Patent History
Patent number: D246470
Type: Grant
Filed: Dec 29, 1975
Date of Patent: Nov 22, 1977
Inventor: Mitsuru Sato (Utdunomiya, Tochigi)
Primary Examiner: A. Hugo Word
Attorney: John E. Lind
Application Number: 5/645,298
Classifications
Current U.S. Class: D25/91
International Classification: D2501;