WASHINGTON (AP) _ The Supreme Court today refused to hear appeals by former Rep. Mario Biaggi, D-N.Y., and two others convicted of bribery-related charges in the so- called Wedtech scandal.

The court, without comment, let stand a ruling that Biaggi, his son Richard and former Bronx, N.Y., Borough President Stanley Simon received a fair trial.

Biaggi is in a federal prison in Fort Worth, Texas, serving an eight-year term for racketeering, extortion, bribery, filing false tax returns and other crimes.

His son was sentenced to two years in prison on similar charges, but the 2nd U.S. Circuit Court of Appeals ordered the younger Biaggi resentenced after it overturned some of the counts against him.

Simon, also convicted of racketeering, extortion and income tax evasion, is serving a five-year term at a federal prison in Allenwood, Pa.

Prosecutors presented evidence that bribery played a key role in the growth of the Wedtech Corp. from a small South Bronx machine shop into a multimillion-dollar defense contractor.

Biaggi sought to introduce trial evidence he said would support his claim that former U.S. Attorney General Edwin Meese played a role in winning contracts for Wedtech when Meese was an aide in the Reagan White House.

Biaggi said the evidence would show the company had no need to bribe a Democratic congressman because of its close ties to the former Republican administration.

The 2nd Circuit court, in upholding his conviction last year, said U.S. District Judge Constance Baker Motley acted within her discretion in excluding the evidence.

The cases are Simon vs. U.S., 90-785; Mario Biaggi vs. U.S., 90-931; Richard Biaggi vs. U.S., 90-937.