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| Number | Title | Issue Date |
| 5407221 | Converter dolly A converter dolly for connecting a second trailer in tandem to a first trailer is provided. The converter dolly comprises a base, a connector frame pivotally connected to the base for horizontal movement about a substantially vertical axis, a dolly lockin... | 04/18/1995 |
| 5098115 | Converter dolly for permitting backing up of tandem trailers A converter dolly for interconnecting and facilitating backing up of a tandem trailer assembly pulled by a tractor is disclosed. The converter dolly is coupled to the rear of a first trailer for pivotable movement relative thereto about a substantially ve... | 03/24/1992 |
