| 摘要 |
1,145,792. Tractor frames. AVCO CORP. 26 April, 1966 [20 Oct., 1965], No. 18166/66. Headings B7B and B7H. [Also in Division Al] A tractor to which front and rear implement units are to be attached (see. Division Al) has at its forward end a laterally extending wheel axle assembly 16 comprising spaced drive wheels 14 and a first support bracket 20, and a second or rear support bracket 36 having a vertical front wall, a horizontal bottom wall 34 and a vertical side wall 30 perpendicular to the front wall. The bracket 20 has a ledge portion 22, an abutment portion 24 and end plates 26, 28.
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