United States Patent 2205769
Inventors:
Sweetland, Ernest J.
Publication Date:
06/25/1940
Assignee:
Sweetland, Ernest J.
Other Classes:
16/421, 16/430, 16/DIG.12, 43/23, 473/206, 473/551
International Classes:
A01K87/08; A63B53/14; B25G1/00; B62K21/26; B63H16/04