| 1922 RADER Toy Building Block Patent Print Art |
| 1922 HUGH PURDY Toy Building Block Patent Print |
| 1950 ALENIUS Wooden Building Block Patent 43099 |
| 1920 LORENZEN Toy Building Design Block Patent |
| 1923 MOLLIE Toy Building Block Patent Print Art |
| 1924 FISHER Toy Building. Block Patent Print Art |
| 1939 SUTTER Glass Building Block OWENS Patent 23194 |
| 1998 YOON Design Toy Building Block MEDIA Patent 38543 |
| 1956 ESPOSITO Toy Building Block Design Patent 37865 |
| 1939 EDWIN Toy Building Block Patent Print Art |
| 1938 HAWK Glass Building Block OWENS Patent 23141 |
| 1927 MORRIS RAYMOND Building Block Patent Print |
| 1927 SHAW FRED Toy Building Block Patent Print |
| 1939 LOCKART Glass Building Block OWENS Patent 23178 |
| 1933 MILLS FRED Toy Building Block Patent Print |
| 1968 PLAYSKOOL Toy Building Block Patent Print |
| 1921 GREENSTREET Toy Building Block Patent Print |
| 1942 PAULSON Toy Building Block Patent Print Art |
| 1925 TOY KROFTERS INC Toy Building Block Patent |
| 1928 ENSLEY Toy Building Block Patent Print Art |
| 1927 LEWERS & COOKE LTD Building Block Patent |
| 1940 BEBAR Building Block Design Patent 23200 |
| 1949 BINDMAN Toy Building Block NOMA Patent 37766 |
| 1934 TOMPKINS Toy Building Block Patent Print |
| 1940 KENDALL Glass Building Block OWENS Patent 23450 |
| 1899 CAMP Ornamental Design Building Block Patent 25366 |
| 1873 ELLIOT Building Block Machine Patent 7827 |
| 1937 SCHAUER Toy Building Block Set Patent Print |
| 1938 TEAGUE Glass Building Block OWENS Patent 23148 |
| 1926 GORE Educational Toy Building Block Patent |
| 1948 HARNQUIST Toy Building Block Patent Print |
| 1939 STAMM Design Building Block BARTON Patent 23191 |
| 1921 SCOTT Toy Building Block Patent Print Art |
| 1926 HARRY C CROY Toy Building Block Patent |
| 1938 HAWK Glass Building Block ILLINOIS Patent 23131 |
| 1929 PICK Compact Partition Building Block Patent 43475 |
| 1938 PAULSON Toy Building Block Patent Print Art |
| 1938 SMITH Glass Building Block OWENS Patent 23144 |
| 1929 JOHN Toy Building Block Patent Print Art |
| 1939 LOCKART Glass Building Block ILLINOIS Patent 23434 |
| 1924 PARKER BROS Toy Building Block Patent Print |
| 1968 KARL Building Block Toy Set Patent Print |