United States Patent 2645502
Inventors:
Charles, Collins
Collins, Dorothy J.
Publication Date:
07/14/1953
Assignee:
Charles, Collins
Collins, Dorothy J.
Other Classes:
280/788, 296/111, 222/463, 280/798, 296/35.400, 280/47.350, 403/327, 280/47.380, 222/572
International Classes:
B62B7/14; B62B9/12; B62B7/00; B62B9/00
Foreign References:
| GB189003008A | | | | |
| DE67450C | | | | |
| DE597382C | | | | |