Upbeat View of Summit Taken by Gorbachev

Soviet leader Mikhail S. Gorbachev struck a conciliatory tone Thursday on the 68th anniversary of the Bolshevik Revolution, calling for a Geneva summit that will help remove “distrust, hatred and suspicion.”

Gorbachev told a reception after the traditional military show of might in Red Square that he sought “a constructive dialogue and a search for mutually beneficial agreements” with the United States.

His Kremlin speech, reported by the official Tass news agency, came only 12 days before President Reagan and Gorbachev meet in Geneva for the first superpower summit in six years.

“If a businesslike, constructive approach for which we are ready prevails, then the forthcoming meeting in Geneva may prove to be fruitful and serve towards improving the international situation,” Gorbachev said.

His tone contrasted with the warnings to Washington that Defense Minister Sergei L. Sokolov gave before the appearance of the military hardware that rumbled across Red Square on the anniversary of the revolution.

‘Explosively Dangerous’

Sokolov, talking of an “explosively dangerous” international situation, said, “The Soviet government is sacredly fulfilling the behest of Lenin to defend our security . . . to equip our armed forces with everything necessary.”

In his speech, carried on international television, Sokolov vowed that the Soviet Union “will not allow the military balance between the U.S.A. and the U.S.S.R., between NATO and the Warsaw Pact, to be upset.”

As he finished speaking, martial music struck up and masses of Soviet troops marched past, followed by heavy weapons that included T-72 tanks, armored personnel carriers, self-propelled artillery and rockets.

Western military attaches noted three pieces of equipment not seen before in a November Red Square parade.

They were the SA-13 low-altitude missile system for protecting mechanized divisions, the SS-21 mobile theater support missile, which replaces the outdated Frog 7, and a new self-propelled howitzer.