Summary of the Extensions of the Standard Model Working Group

We summarize the results of the extended gauge group working group of the Madison-Argonne Workshop on Present and Future Colliders. Contributions are described on the previously unexamined two photon fusion production of heavy leptons, new studies of $Z'$ couplings to $\nu \bar{\nu}$ and $q\bar{q}$, and previously unexplored vector leptoquark production. More detailed accounts of these studies can be found in individual contributions.
Comment: (at the Argonne-Madison Workshop on Physics at Current Accelerators and the Supercollider), 6 pages, latex with epsfig and worldsci. The postcript file is available via anonymous ftp at hepcu.physics.carleton.ca as disk$userd:[peterson.tex]ocipc9311.ps ANL-HEP-CP-93-60, OCIP/C-93-11