1.
|
Buffalo, New York : The Patent and Trademark Office Society, 1991.
English | 47 | 47 US |
|
2.
|
Buffalo, New York : The Patent and Trademark Office Society, 1994.
English | 47 | 47 US |
|
3.
|
Buffalo, New York : The Patent and Trademark Office Society, 1969.
Swiss german | 47 | 47 US |
|
4.
|
Buffalo, New York : The Patent and Trademark Office Society, 1992.
English | 47 | 47 US |
|
5.
|
Buffalo, New York : The Patent and Trademark Office Society, 1991.
English | 47 | 47 US |
|
6.
|
Buffalo, New York : The Patent and Trademark Office Society, 1978.
English | 47 | 47 US |
|
7.
|
Buffalo, New York : The Patent and Trademark Office Society, 1974.
English | 47 | 47 US |
|
8.
|
Buffalo, New York : The Patent and Trademark Office Society, 1971.
English | 47 | 47 US |
|
9.
|
Buffalo, New York : The Patent and Trademark Office Society, 1975.
English | 47 | 47 US |
|
10.
|
Buffalo, New York : The Patent and Trademark Office Society, 1968.
English | 47 | 47 US |
|