COMBINATION REMOVABLE POST AND DRIVER
United States Patent 3519234
Inventors:
Matson, Carl G.
Publication Date:
07/07/1970
Other Classes:
173/91, 144/195.500
International Classes:
E01F9/011; E04H12/22; E04H17/18; E04H17/16; E01F9/01
US Patent References:
| 3143817 | Sign holders | | | |
| 3304041 | Adjustable support for excavation batter boards | | | |
| 3317168 | Object-supporting standard and ground anchor therefor | | | |
| 3285554 | Support device | | | |